you can still be a technical "virgin" and your hymen still be broken. I read somewhere that it happens to gymnasts and horse riders. (I'm thinking that's a lil weird, but whatever floats your boat).
I agree with bubz - being a virgin is not having had sex yet.
But as the question asks, what is so good about being a virgin?
Not much.....you're just missing out on awesome orgasms as mmm_sofay said a few pages back, and sweet intimacy.
With that in mind, you can give your own self awesome orgasms. lol