my old ps1 broke, then the replacement I got fucked up and overheated from maybe 5 hours of play one day, but it didn't get ruined somehow since it still works today and hasn't screwed up since then, and that was like 4 years ago. same with my n64. my snes still works, sort of, but some of the games I have fuck up like old nes games do (i.e. put them in and it won't read them) but that seems to be more of a problem with specific games than the snes. and I wound up having to get the el cheapo genesis 3 that sucks, but at least it reads my genesis games. and my original dreamcast fucked up after about 2-3 years of almost constant play (ok so it wasn't on all the time for 3 years in a row obviously, but i was playing it a lot) but the replacement i bought then (right around when sega was price dropping them down to like $80) has worked perfectly. no problems with the current systems at all.