I've replaced the PSU board that went pop in my early 2008 quite a few years ago and up until a few weeks ago it's been well used in the bedroom for the likes of Netflix et al.
Then watching Netflix three/four weeks ago the screen froze (audio continued) and it was dead...would not reboot any more except into safe mode.
I have now fixed it without spending any money on it ? (see my post on what I tried).
So now watching Netflix again on this early 2008 with 4Gb RAM running El Capitan. I suspect we can keep these going as bedroom entertainment systems just as long as Chrome/Firefox support El Capitan as an OS. Then they will have to be retired. Shame the WiFi drivers are not in High Sierra (seeing that all that is stopping the upgrade via
@dosdude1 fix). If I could cat5 to my router I would, but it's in another room and don't want to route cables all over the place ?
Enjoy them whilst we still can!! ???