Basically, do you get games, beat them... Then come back to beat them again?
The worst quip for me about single layer games, is once I beat them...
Well... I'm pretty much done with them.
It's not that they weren't good. It's just that I'm not one of those "Do it over and over" people. I can play through a game no more than 2 times. Just like movies and books (except I can't read a book more than once.)
That's why I'm psyched about Wii's ability for online.
But that's beside the point.
Are you one of those people who can just go back to a game and beat it again having the same amount of fun? I envy you.