I actually had a PS2. For about 6 months. Probably used it less than 1 month. Couldn't sell it fast enough. FF-X killed it for me. Couple of the driving games weren't too bad, but that genre doesn't hold my attention well enough for me to regularly spend £40 for a new one.
Hooked up a keyboard and mouse to it to play RTS games, and it was absolutely dreadful. non-intuitive menus unlike on PC platform versions. Horrible gameplay.
Had a tinker with a friend's Dreamcast, once. Almost the same experience, just different games.
Still have my PS1 somewhere, and probably play FF7 once in a blue moon, but TBH, it doesn't grip me much any more.
Never tried an Xbox/360, and don't think I ever will. I just don't want to have yet another wodge of cash get flushed down the pan.
Call me spoiled, but consoles are for 8 year old kids to play platform and racing games on. Maybe some decent RPGs can be done, but since the days of MegaDrive, I haven't seen one.