I still have a PS2, even if all I use it for are playing dvds.. screw getting separate tech..
before that, i bought a used PS1 maybe 4 years after they first came out (actually, I traded a bunch of comics for it), and I only kept it roughly a year..
before that, I was mad behind, the last system I owned was an Intellivision set (which, IMO, ethered the competition during its run).. I still have it, actually, plus plenty cartridges.. don't know if it still works.. i know there are heads who refurbish these things and sell them on Ebay..
I'm vaguely tempted to try getting a PS3, with these Circuit City closings, they might have some still left.. I'm into sports and action/rpg games..