Not praising it. It sucks. But the reality is there is a tiny tiny tiny market for HEDT, and the market for HEDT on mac is a tiny tiny fraction of that tiny tiny tiny market. There is no financial or business case to make a great mac pro. There's honestly a bit of a case that the studio should have been a bit bigger and had a 2-4 internal PCIe slots. But beyond that, even AMD doesn't bother to release HEDT parts regularly anymore and intel just put out their first major competitive update in years. The market between the MxUltra/x950x/xx900k and the datacenter/server is tiny and not worth investing in. if 24 cores of M2, 16 of Zen 4, or 24 of Raptor Lake isn't enough for you, chances are you're buying a server or cloud computing, not a higher end workstation
Everyone is using SoC. Phones, most laptops, all game consoles, every camera, etc. Even at the high end, look at every development. Intel has Ponte Vecchio with up to 47 tiles glommed together on one socket. AMD has been building more and more complex chiplet and stacked desgins for over 5 years. HBM or super fast an wide on package LPDDR massively faster ands wider than DDR or even GDDR.
There was a time we built computers out of vaccum tubes, and for the last 70 years the march has been towards more and more tighter integrtation of all hardware components because it allows for faster and faster speeds, lower latencies, better signal integrity, etc. The only advantage discrete componenets have is packaging and thermal.
As 100+ BN transistors can now be packed onto one SoC and be managed by a 200W thermal solution, the end of discrete componets is nigh. A large, properly powered and cooled AMD SoC with 16 zen 4 cores, 96 RDNA 3 compute units, and 192GB of shared GDDR6x or LPDDR5x on a 384 or 512 bit bus would run circles around a 7900x + 7900xtx system. So much overhead would be gone, so much wasted time moving data around, etc. Not understanding that a SoC is better is like not seeing the advantage a transistor had over a vacuum tube.
Apple's fault. Intentionally though, and they see it as a good thing. Because a few guys at Disney don't pay the bills to develop hardware and software that will be used by hundreds or thousands of people when those resources could go to solutions like a better A series chip or iOS apps that sell in the 100s of millions per year.
Workstations don't exist anymore. Threadripper hasn't had a new release in years and the TR 7000 series keeps slipping. Intel only put out Sapphire rapids because they are desperate to find any niche they beat AMD in, and they can beat 4 year old TR3000. Again, there are not enough people who want/need more than the MxUltra/x950X/xx900k but don't use server/datacenter hardware to make entering that market worthwhile. It sucks to be one of the people still stuck in the middle, who maybe could have used it. But your use case is extremely rare, and the cost of developing a new chip is extremely high. As a HEDT platform, the MacPro is DOA. But so is the whole HEDT market.
Not excuses. Facts. Apple knows they will sell thousands of MacPros, while they sell millions of MacBook Pros, 10s of millions of macbooks and ipads, and hundreds of millions of iPhones. They must recoup the RnD costs of the platform to justify making it. That means each buyer is covering many orders of magnitude more RnD compared to even a MacBook Pro.
The MacPro is at the pointest end of Apple's most Niche product line. Stats I can find lump " All-in-one, blade, mobile, rack, and traditional desktop workstation" together with no further detail, so no doubt include a lot of consumer and server hardware as well, but they state that in 2022 only 7.7mm "Workstations" shipped globally. If even 25% of that was actual HEDT towers, that's under 2mm global units. Assuming ~8% Mac market share, that's ~150k potential MacPro customers. I feel this is a very generous estimate for total MacPro customers.
Even if Apple expects to sell those 150k MacPro towers, at an average transaction price of 9000, their 40% target margin leaves ~$540mm in income from the mac pro line. That has to cover development of the hardware, marketing, factory costs, mananging the supply chain for the many unique components, special software development for the only PCIe equipped AS mac, etc.
Meanwhile, let's assume just 10% of Mac Sales are MBP/Studio (so using dies above the M1/M2), so about 3mm units in 2022. At an average of probably $3500 per unit, that leaves about $1500 in gross margin per unit or $4.5 BILLION to cover all development and other costs plus profit. Apple would need to sell well over 1 million $9000 MacPros per year for it to be as profitable as the MacBook Pro line likely is. That would mean apple would need the vast majority of the world's HEDT market to make the MacPro even as profitable as the MacBook Pro/Mac Studio, let alone something like the iPhone.
The market to take MacPro seriously just does not exist. Apple threw something out for the die hards, priced it so even selling 10k a month would cover costs, and will keep doing this until the category dries up completeltey. i don't like that. But pretending the dozens of MacPro customers are a market force apple cares about is delusional.
If by "Computers" you mean ATX towers. A tiny fraction of the global computer market. Even if you're generous and don't count phones and tablets as computers, "Desktops" are ~20% of the PC market, and desktops with high end Power supplies and x16 PCIe slots needed for GPUs are less than that, maybe 10% of the PC market. The reality is 9 out of 10 computers and more like 49 out of 50 computing devices can't use dedicated GPUs or any PCIe slots. The use case and world you live in is a tiny, dying niche. I hate that. I love a good tower. I love filling in PCIe slots. I love waking up an old system with a new GPU or even CPU, but we're a dying breed and the hardware we use or love is dying with us.
nVidia sells to datacenters, not workstations. They are a hype company pivoting their offerings towards whatever buzzword has piqued the anxiety uninformed FOMO executives and investors. "Buy our accelerators for Crypto! Wait, we meant for NFTs! Oh, no, it's 'AI' that's gonna change the world, powered by nVidia, of course!" Quardo is dead. Titan is dead. GeForce is dying to SoCs. GPUs or compute accelerators outside of datacenter are a very rare, niche product.
Apple "messed up" (i still argue it was intentional, they wanted to kill off the not very profitable pro desktop end of their offering) in 2013 because the MacPro did not have PCIe, not becasue it didn't have GPU support. That's what they admitted. They realized that the audio pro and tiny boutque video shop might still use a mac from time to time and built a 2019 and 2023 mac pro that allows those users to stay on mac if they want to pay for the privilege. The truth is, a MacBook Pro or Ultra Studio can handle multicam 8k ProRes editing live, and any workflow beyond that in the AV space is being done by server racks running custom Linux. As for Science, especially Data Science, Apple prioved they were willing and ready to shun those customers when they abandoned nVidia over a decade ago.
Apple picks markets to be in they feel can be most profitable and fit their core competices the most. 20 years ago one of those was PC towers. And despite becoming a phone company that makes a few PCs, they know they have a few loyalists who love a big tower, so they have a tower out there again. They tried to scare you off in 2013. You didn't listen. So now they will make a tower as long as they can make a little money and mostly ignore it.
It's sad and lame, but the era of the tower is over. Like VCRs, CRTs, Camcorders, Firewire, consumer SCSI, and so many other once great products. Time marches on and tech improves. Every time it does, someone gets left behind at the expense of 20 others being carried forward. The blacksmith/horseshoer lost our to the automobile, but for every blacksmith out of work, dozens of people could travel more safely cheaply and quikcly than ever before. The PCIe/GPU die hard is losing out in this transition, but for each of us who lose the ability to add USB 2.0 to a 90's machine, or an RDNA 2 GPU to one from 2009, dozens more people have access to better, faster, and cheaper computing solutions than ever before.
In short, it's not about you. The MacPro mutating on the way to an all but certain death sucks for you, but it's good for Apple and 95% of consumers that development has shifted from ATX towers to super fast SoCs.
I'm not justifying anything. Just laying out the facts behind the decision. Apple is doing better than ever. Apple exists to drive wealth to their stockholders. Not make weridos like us who like tower PCs in the 2020s happy. If they could make billions on a cheap tower, they'd sell one. But there's no way to make iPhone or services products marketing a tower to a couple hundred thousand people worldwide.