I currently have a working PS, fat PS2, and of course a PS3 from somewhere around late 2007. The PS2 was replaced about a year after I got it because some DVD read error issues, but it's still like 10-11 years old. Also, it is having a bit of trouble reading discs now, but it's mostly fine. I could replace the laser and it'd be good as new!

THe PS3 however, is showing no signs of aging yet. I don't expect it will anytime soon either, considering the most actively used mechanical part of it (the HDD) is easily replacable by end users, and it's also cheap to do so!