Achievements
I only have 70% of the achievements. What am I missing? I tried watching the video again, but I only got the same old ones again.
Realistically, I find most achievements either prove I'm not as good as certain games (like not being able to do combos in SF4) or that the game has some obscure out of the way trophy for doing something only the programmers know about.
On the other scale, most of them merely indicate how far you've gotten into the game as all trophies are the linear quests and eventual stats. (Kill # of guys)... actually, that sounds kind of like MMO grinding.