I am officially jealous, but SWMBO would never agree to me spending the money for a fully loaded HEDT system.The nice part is that HEDT systems make great servers and the like when done - my x99 box is a massive 14T all flash system, with two sas cards, a dual port 10G card, and 16 drives (plus expansion for more - and two free NVMe slots). X399 is now our central controller for Site Delta, and has 25T of mixed storage (doubles as a plex server!). Etc.
Expansion opens options. Consumer systems are really limited to compute only- especially since Ryzen doesn’t have an integrated GPU, so you have to burn a slot on a basic GT 710. And it gets finicky above 64G of ram, while Threadripper doesn’t blink at 128G, and only gets picky at 256.
I’m an edge case- but there are others that aren’t far off.