I just "re-cycle" them.
Bought a 7700X two years ago. My 3600X went to my wife. Previous machine (forgot which one it was but some Intel CPU) went to my mother-in-law. Machine three machines before that, my trusty old Core i7-6700K from 2015 (I think 2015): it's now a little Proxmox server at home.
I'll probably buy a 9900X or something now: don't want to wait late 2026/2027 for Zen 6 to come out. 7700X shall go to the wife, 3600X to the kid.
My machines typically work for a very long time: I carefully pick the components and assemble them myself and then test them. Usually when I pull the plug for the final time, it's still working fine.
But yet I like to be not too far behind: my 7700X from 2022 is okay. But I'll still upgrade. Doesn't mean it's not worth keeping: I'll keep it, just not for me.
Thinkpad X61s(45nm) DDR2 / D512MO(45nm) DDR2 / 3770S(22nm) DDR3 / 4430S(22nm) DDR3
All still in client use.
All got new RAM this year and when the SSDs break (all have SLC) I have new SLC SSDs and will install headless linux for server duty on 1Gb/s symmertic fiber until the motherboards break in a way I can't repair. Will probably resolder caps.
In any case, my point in the last sentence is not that we shouldn't encourage people to use more power efficent devices. My point is that encouraging people to use open software and encouraging people to use power efficent devices are, to me, two seperate and unrelated goals. It seems that, by not offering x86 Linux you sacrifice one goal over the other which doesnt seem needed.
I suppose that the part of your position which I don't understand, and I am still interested to hear more about, is: if you are this concerned about openness and power efficiency, why even offer x86 Windows which is objectively worse by your metrics than x86 Linux.
The 3588 that can play HL2 at 300 FPS draws maybe around 10-15W.
Windows is 99% of the market today so if you don't support it you don't exist, in 5 years I'm hoping Windows will be around 50% because people will grow tired of the violent AAA games and electricity prices will rise.
Playing a couple of hours will soon cost more than the game costs to buy.