I wasn't in a fraternity in college. I thought about it, certainly. There's definitely something appealing about being part of a "brotherhood" and obviously the parties are a huge plus. But when it came down to it, for me, my people weren't in a frat. So I decided not to rush. And I don't regret it at all, even though I probably would have had a great time had I ended up joining.
But either way, movies about fraternities are usually lots of fun, and I will always have those!