The advantage of sororities is that you meet a lot of people, get into a lot of activities, and end up making a lot of bonds for life. It's a lot of fun, for sure.
Some of the activities can be put on your resume in the future and depending on how active of a leadership role you have, can really help you get your foot in the door of some businesses later. It's really never too early to think about that, as boring as it sounds now.
The downside is usually the dues that you have to pay every year, which can be very expensive, but otherwise sororities are pretty good. Not everybody ends up living in the actual house, since you have to be invited to live there, but they're really nice.
I'd say try it. You'll have a lot of fun at pledge events, and if you decide you don't like it later on you can always get out of a sorority. I'm sure you'll end up loving it though. :)