I never claimed to be the same as every user out there. I know a ton of people and they're all wondering how this fits into their workflow. There are people out there that need more and this might make sense for them. For me, and everyone I've talked to, Xeons are overkill. We don't need ECC RAM. We'd like Nvidia because Redshift currently doesn't work with AMD. Anyone who ever deals with AE needs single-core performance for that outdated program where even "consumer" chips would beat this. What would have been compelling to me, would have been a solid I9 option or—and this was always a long shot—a Ryzen or Threadripper option. Xeons and 1.5TB of ECC RAM just wouldn't be able to help me. AE won't use it. C4D might, but we'd be on GPU anyway. Resolve probably could, but honestly it's optimized enough that it can work with 4K RED on my laptop.
As you said, it's not about a few thousand dollars. It's about what you get for it. You're being raked over the coals already for the base and with Apple, upgrades are often exceedingly overpriced. The only value is in upgrading it. But if I spent $20K on this machine (besides the opportunity cost) I just don't see how I'd fair better than spending $10K with a good builder or by building myself with quality components. Also, they're selling upgradeability, so I don't think buying now with 64GB and upgrading to 512GB RAM would make me all that different than what they're shooting for.
Anyway, nice having a discussion with someone rational on here.
Indeed, I am still massively irked by the fact there is no sub-Xeon/Consumer CPU £2-4K option of an expandable macOS tower without going Hackintosh. We all know Apple just don't want to do it (for numerous reasons) but it's frustrating that they wont. The new Mac Pro is currently out of my budget for my use, but then it's also the wrong kind of machine for my use, but so is a Mini, and so is an iMac, there is simply no middle ground offering from Apple that could fill, and expand into that gap, annoying in the extreme, but as I've said elsewhere that doesn't make the new Mac Pro a
bad machine, it's just the
wrong machine for me. But I do know people who it is absolutely the right machine for, and they will almost certainly be sinking 10-20k into each one they buy.
I think you are a user who has a very deep an technical understanding of your needs, you're actually quite rare, even amongst 'pros', many just want to buy an off the shelf, supported computer that will run their workload, with the option of some point-of-purchase customisation and also of making it a bit more capable later on with further upgrades, even if those upgrades are actually overpriced when bought from the vendor*. Once you're into building specialised and optimised machines you've already diverged from the typical Apple or HP or Dell workstation user I think.
I'm not so bothered about AMD, the CPU landscape is always volatile and although they offer some genuinely excellent CPUs right now I don't necessarily think Apple flipping to AMD (for how long?) would be the right option, but it's always hard to guage these things without the benefit of hindsight ;-)
I also think the Nvidia thing is a bit of a sticky point... I am genuinely interested to see how that plays out...for both Apple and the users.
* Case in point, I *have* to buy HP approved Ram for our servers at work, it's company policy to maintain support. It normally ends up costing between 2-10x what I could buy the same spec Ram for from another vendor. Does my company care? not one tiny little bit...what's £10k in one-off/annual Ram upgrades on a single platform (of many), when a software license renewal is £100k per annum or more.
We've got machines that cost more in electricity to run over 3 years than they originally cost to buy, it's a funny old world when spending several thousand pounds on new hardware can end up saving you money over the lifetime of the machine just due to increases in efficiency.