I've often seen some of these tendencies in myself. Luckily, usually I figure out pretty quickly I'm not enjoying myself and go do something fun. But that is the reason I do not enjoy morality games for instance, playing the game again feels like a chore, just to see some missed content. But my urge to see the content is there, making me feel dissatisfied and obsessing over the choices I make during the game.
However, on the achievement side I disagree. Many achievements squeeze just that extra life out of the game, or they let you play the game in a way you did not think of or bothered to before. Besides all the bs achievements of course, there is a reason I haven't got a single game on 100%, although Arkham Asylum is close. But once I got 5 more achievement points out of that game than my brother I stopped
However, on the achievement side I disagree. Many achievements squeeze just that extra life out of the game, or they let you play the game in a way you did not think of or bothered to before. Besides all the bs achievements of course, there is a reason I haven't got a single game on 100%, although Arkham Asylum is close. But once I got 5 more achievement points out of that game than my brother I stopped