Usually when I play games, I am always looking to try and get the next chapter completed achievement, or going out of my way to get as many side achievements as I can (get xxx kills with xxx weapon, etc). However, with Dark Souls, I have not cared once which achievements I have or haven't gotten. Is this a sign that playing Dark Souls is satisfying in itself, beyond just getting a little pop-up when you beat a major boss? I think so.
What does this mean about other games, then, that I look forward to that achievement pop more than making progress in the game? Maybe that has something to do with why I've been having more fun with Dark Souls than any other game I've played recently.