I've gone through a similar thing. All of my sororities had some kind of reputation (Well, is there one that doesn't? LOL) Unfortunately, I believed most of them until half way through rush. UGH. I hate it because I feel that my sorority has the worst rep of all just because we're smaller than the rest of the houses. People say that we're the house to go to if you're a "misfit" or if you couldn't get a bid anywhere else. People also think that we're stuck up and are prudes.
Idahovandal, please pay no attention to any stereotype that you hear. Most of them are probably started by ignorant people. I almost didn't accept my bid because it wasn't that "perfect, popular house" and because of those reputations I heard. That would have been the biggest mistake of my life! I wish you the best of luck.
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"We're not good because we're old. We're old because we're good!"