That was the first really big one I remember. Prior to that, I think we had a cook out at StillCrazee's. And of course, prior to that, I had my own small group of people who went to the movies together, back when the forum was a web bulletin board service.
Last big one - well - something happened that they STILL TALK ABOUT. Not gonna say.
I only ever go to any if they are very close by, because I'm married and have kids now.