Shitty roommates are just a part of the college experience, or so I'm told.
I wouldn't know; I lived off-campus my entire time in college.
On the bright side, besides maybe lucking out with cool roommates, people tend to be really busy in college (out having fun, studying in the library, working, etc.) and you'll probably won't even end up being around them too much anyway. After all, most people probably won't want to stay in their dorms most of the time.