OK, some people say they didn't learn much from college classes, and therefore university was worthless (or wasn't worth the money). I disagree. University puts you in an environment that encourages learning and inquisition. You could argue that you learned alot more from wikipedia than classes, but if it weren't for university, would you even bother reading wikipedia?
I can guarantee you that for the vast majority of my classes it would have been better if I'd gone off and studied on my own, which I do. I also hardly ever learn anything from my classmates, except one or two friends.