My PS worked for years upon years, and my PS2 that I got back around 2001 or 2002 still works like a champ.
Yeah, I've had pretty good luck with my 360s. My first 360, the disc drive started going bad after a couple years, getting stuck and being a bitch to actually get to open up to remove or insert discs, but other than that, there were no issues with it. And no problems whatsoever so far with my new 360 slim that I got last year. Some of my friends with 360s have had 3 or 4 of 5 different 360s since launch.