I guess I've always been more of a Sony trait. I've probably played my PS1 and PS2 more than any other consoles.
Rare have I ever lost track of time on another console.
I was playing metal gear solid 3 last night, and before I knew it, I had tacked on about 6 hours of play time, and it was 5 am in the morning.
I've had that happen with quite a few other games on the ps2.
The only game on the cube I ever lost track of time with was playing the ocarina of time port.
And as for my xbox, well, if I didn't mod it, I probably would have pawned it a long time ago.
Somehow I'm not worried at all about the PS3, I'm just pretty confident it will have plenty of decent games soon.