How did you guys pay for your sorority? My parents don't really approve of greek life, at least not now.

I've still got a while to convince them, and I figure if I just keep mentioning it they'll get used to the idea. But anyway, I might need to have a backup plan, like getting a job and paying for it myself, so how did you guys afford it? And in CA schools, public or private, does the cost vary a lot between schools or can someone give me an estimate? Thanks so much everyone!