Ugh I'd never buy a game just for easy achievements despite having the means to check out any game and play it for 4 days. Gaming isn't about a score, but about enjoying the experience. However, i must say if I really do enjoy the experience, just like any game before, I like to go through and complete it as fully as possible. So a lot of the games I do get on 360 I go through and get all the achievements that I can if I really like the game. Just like I would in any other system's game if I really like it and want to complete as much of it.
So in short don't play games just for the sake of beefing up a score that doesn't matter whatsoever. Play games for fun and get achievements for your own sake of continuing the fun factor and replay value of the game.
