Joking aside, personally will buy this workstation in a heartbeat if I have the budget to spare, one in the home and another in the office.
Currently I have an desktop/workstation for AI workloads with similar 128GB RAM that I bought few years back that cost around USD5K without the NVIDIA GPU that I bought earlier for about USD1.5K, with a total of about USD6.5K without a display monitor. This the same price of NeXT workstation (with a monitor) when it's sold back in 1988 without adjusting for inflations (now around USD18K) but it is more than 200 times faster in CPU speed and more than 1000 times RAM capacity than the original 25 MHz CPU and 4 MB RAM, respectively. The later updated version of NeXT has graphic accelerator with 8 MB VRAM, since the workstation has RTX 2080 it is about 1000 times more. I believe the updated NeXT with graphic accelerator is the one that used to develop original Doom software [1].
If NVIDIA can sell the Project Digits Linux desktop at USD3K with similar or more powerful setup configurations, it's going to be a winner and probably can sell by truckloads. It seems to has NeXT workstation vibe to it that used to develop the original WWW and Doom software. Hopefully it will be used to develop many innovative software but now using open source Linux software eco-system not proprietary one.
The latest Linux kernel now has real-time capability for more responsive desktop experience and as saying goes, good things come to those who wait.
[1] NeXT Computer: