Looks nice. The price is, as usual, absolutely bonkers, but the build quality and user experience will be second to none I'm sure, and the feature set looks on target for the "one notch under the top of the line" machine. Kind of wish there were i9 options, for no other reason than 9 is a higher number than 7, but perhaps a mid-cycle refresh will address that. As to user-upgradable RAM, keep refreshing the macsales.com website - I'm sure they'll have it sorted within days.
I wouldn't be surprised at all if the next Mac Pro is using Apple silicon and not Intel. That would twist some nipples.
Compared to those $1k used dual-Xeon servers in the Junkie XL video, the Mac Mini price is a laugh, but then again it's silent, tiny, has TB3, and runs MacOS.
I'm always in the habit of looking for the best-built gear, but sometimes this attitude is overkill. I recently did a big studio clean-out and literally gave away a bunch of stuff like Mac Pro 2.1 machines and 16-year-old Panasonic plasma displays. They all still worked absolutely fine and had many years of serviceable life left in them, but the underlying technology was no longer relevant. Those Mac Pro 2.1 machines could only go to MacOS Lion, had FireWire 400 as the fastest external storage connector, and even UsedMac.com did not want them - wouldn't even give $100 for one. Those Panasonic 42" plasma displays were nearly $4k new, had worked perfectly for 16 years, and still looked perfect - but they had no HDMI (composite/component only) and the resolution was 480p (!!!) - and they are so heavy that I had to use SoundAnchors stands for them. They will be replaced by $1,500 75-inch Samsung 4k televisions. The new 4k tvs cost less than the stands that the plasmas were on!
At the time, I thought that the only acceptable decision was to buy Panasonic Industrial displays, the kind used for digital signage in airports and such, because I wanted maximum build quality and longevity.
I probably should have bought no-name Chinese crap, because they would have failed and I would have upgraded twice by now for the same money - and I wouldn't have felt so guilty when I left those Panasonics out on the curb with a sign saying, "42 Inch Plasma - WORKS!".
(They were snatched up by scavengers within minutes.)
So there's something to be said for buying rattly old used Dell servers for VEPro use - they'll probably last as long as they need to and you won't feel guilty just tossing them in the e-waste recycling bin when the time comes.