I'd love to hear some use cases from people who have gotten the new mac mini. Which build did you go with, how are you using it, which apps are you running on it, and are you happy with your purchase. (
I'm sure somebody out there is using their Mac Mini for something other than running Geekbench and tracking internal temperature. 
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You have to realise that Geekbench scores and internal temperatures, along with CPU speed and cores, RAM GB's, and the like are of vital importance to x-perts, on-line pundits and wannabes after bragging rights, who are somewhat vociferous on the Mac Mini forums. A few may be actual pros who frequently render videos, or crunch large amounts of data, while others just take joy from the snappy performance from a machine specced well beyond their real world needs...... Just as we see in the world of cars and motorcycles.
As an average Joe, employed as a teacher I use Pages to create documents, Numbers to keep records, Keynote occasionally for presentations, iTunes for audio that goes with some the textbooks I use (and have used Garage Band to transfer tapes to digital for a few), Safari for research, and sometimes Photos. I also use MEE, a downloaded app to go with some of the teaching material I use. I also use the Calendar and the Dictionary quite a bit.
I used to take my Mac Mini to use in class occasionally (with an LCD projector), but now I need a computer in class most days, so I bought a new 2017 MacBook Air a few months ago, before the start of the present term. I see it as supplementing, not replacing the Mac Mini.
Personally I use most of the above, though differently. As an expat Safari is important for communications and entertainment (I don't have a TV and prefer on-line radio from home and elsewhere to the local offerings). Also iTunes where I have loaded most of my CD collection. I use Photos to edit and archive shots I take at sports events (some of which are used in the local press and on websites) concerts, travels etc. I use Maps and other apps occasionally.
Nothing I do is highly demanding of a computer, and most can be handled with aplomb by my 2009 base model Mac Mini (upgraded with an extra 4 GB RAM, but still on the original 120 GB HDD) with the the only real limitation being the awful Photos 1.0, which replaced the adequate iPhoto when I upgraded to El Capitan (I now do editing on the Air which I have updated to Mojave, and it has Photos 4.0, which I find OK). Also it would be good to have more on board storage.
Given it's age, thus possible HDD failure and other reliability issues in the offing I was looking to replace the 2009 Mini with a 2018 Mac Mini to take over the same role, more likely sooner than later. It would also bring some convince with the likes of AirDrop, so I could work on documents and the like on the Mini and easily transfer them to the Air.
However, given the specs and price of the base model I have second thoughts. The base model 2018 Mac Mini has way more grunt than I need..... but in the 128 GB SSD (of which probably 30 GB will be taken up for MacOS, Apps and "Systems") there will be less available data storage than in the 2009 Mini I am using now.
The 2018 Mini would be snappier to open apps and files. However, once they are open on the Air, I don't sense any significant difference in using them compared to the Mini. Would be the same with the 2018 Mini.
All in all for an average Joe such as myself, the 2018 Mac Mini costs a lot more, for little more real life utility, than the nearly ten year old Mac Mini I am using now. To upgrade the storage to adds significantly to the price. It may have plenty going for it for real pro users, but the consumer base that was served adequately by Mac Minis of yore have been left out in the cold.
My Mac Mini and my motorcycle.... both adequate for my humble needs.
