Well by the time the become obsolete you can run that computing on a Mac with no special cooling so I really doubt they will be of any use. Maybe in some parts of the world where electricity is cheap. If someone wants to really find out perhaps watching the crypto ASICs stories could help.

Well technically true, I would wager that the home lab is going to require increasingly distinct and unusual adaptations to retrofit the hardware to home use.

New stuff is all liquid cooled by default and that's a paradigm shift for your average home lab.

I'm less aware of exactly what's happening on the power side of things but I think some of the architectures are now moving to relatively high voltage DC throughout and then down converting it to low voltage right before it's used. So not exactly just plug-and-play with your average nema15 outlet.