I'm one of those people who like to re-start games and try new things. So, I'll start off with a sneaky thief-like character, play with him for about 10-20 hours, and then decide I want to try something new, like a magic user or a fighter. What's great is that Oblivion has a bunch of different classes for me to try out, and it keeps me interested for quite some time. However, after a couple of re-starts, I find that I have completed pretty much all of the side-quests that are available to you at the beginning, leaving me with just the main story, which I'm not too fond of. So, I end up getting quite tired of the game.