I am definitely guilty of this, even to the point of not enjoying what I am playing. I don't know what it is, but I love unlocking achievements, not so much to brag to others (mostly because no one really cares, lol), but to accomplish something for myself.
Sometimes I don't want to play a game on something like the PS3 simply because trophies won't add to my achievements. I wouldn't say achievements are ruining gaming, because most of the time they actually help me enjoy the game even more. I do love having stats to help myself get better at a game (except k/d ratio in anything but team deathmatch in CoD, that is just stupid).
What are your opinions of achievement points/trophies? Love 'em? Hate 'em? I'd love to hear your reasons for your opinion.