I agree. I think the only game I have ever put over 100 hours into was Burnout Paradise. And thats really only because of trophies being patched in later.I don't mean this as demeaning at all, but it always amazes me when someone puts triple digit hours into a game. I think my longest game ever was ffx for the plat and that was probably about 80 hours. And then I read about the time required for destiny of spirits 100% being like 300 hours and I can't even comprehend it.
I love GTA games and yet I have never put more than 50 or so hours into any of them. I put 70 plus into Just Cause 2. Everything else I play is probably 30 hours or less. Most of them under 10 since I generally play shorter SP games.