Which SSD?
I was really hoping for upgradeable RAM, but it looks like the Studio has zero internal expandability.
But 128Gb 20C/48G/32N Ultra with 4Tb (my choice) is still less than the cheapest Mac Pro... I've waited this long so waiting for the first tear down videos is no biggie. $5800 is worth it for me if it will get OS updates for 10 years. This is what I really want from Apple Silicon, hopefully Apple will deliver. Despite all its faults, the 2013 MP might make it that far (21 months to go).
Looks like the delivery dates are whacked. Selecting the Max CPU first, then configuring 128Gb 20C/48G/32N ULTRA with 4Tb shows an April 6th - 13th Delivery, Over a month sooner than first selecting Ultra + same options.
Given the performance claims, my guess is the "Mac Pro" line sunsets with Intel (Including Intel itself, who knew?).
Also, with a $2k base price entry point, the Studio might just put Mac desktops in a great position. I may have to expand my Software company, but I'm having too much fun in semi-retirement.