Mmm hmmm, my boyfriend goes to a school in southeastern Ohio and I haven't seen anything resembling a Prada bag there...and I myself am a small-town girl going to a big school, so I definitely can sympathise with you! Before I rushed my sophomore year, I had never seen stuff like that in person, you know? But back to the topic...maybe you should try hanging out with sisters from various groups or going to COB events. I think that would help you get to know them a little better than a recruitment function would ever allow you to. You might find a group that you click with after all. I can't really say because I don't know everything about the situation, but if you really feel like you don't fit in any of the groups on your campus there's no reason you should try to make yourself do it--the whole point is being yourself, and if you feel like you have to change to mesh with any of the groups, it isn't worth it. In that case, I would ask around and find out if your school is considering bringing in any other sororities and which ones they are...and if not, well, then feel free to move things along yourself.
There are several people on here who have started or are in the process of starting their own chapter, so talk to them and see what you think.