There's certainly some games that do everything possible to keep people playing even if they're not having fun. I fell prey to Mafia Wars which has keeping up with the Jones mechanic. It actually pulled me in with the ease of exploits allowing leveling at will. Once they effectively blocked me from doing it I gradually pulled out of it. And it is always a laugh to hear people talk about skill in relation to the game.
I'm usually pretty good about avoid proper games that rely too heavily on grinding as I get pretty bored of endlessly repeating easy tasks to level up. Ultima 6 was probably the last game I did that for any length of time. Online Red Dead Redemption doesn't really suck me in too hard because of the leveling system and relative lack of content. I might hit a hideout a couple of times but I'll move on pretty quickly.
I'm usually pretty good about avoid proper games that rely too heavily on grinding as I get pretty bored of endlessly repeating easy tasks to level up. Ultima 6 was probably the last game I did that for any length of time. Online Red Dead Redemption doesn't really suck me in too hard because of the leveling system and relative lack of content. I might hit a hideout a couple of times but I'll move on pretty quickly.