I totally see what you guys are saying and have thought the very same thoughts too!!!
That being said, when I was in high school- I was in a really spectacular choral group called the Madrigal Singers (I know some of you all remember this), and it was one of those things where we made people cry every gig that we did. Being a part of that group was absolutely the best and most memorable experience of my life, and when you are an insider you do get to enjoy it, just in a different way.
This past school year was the first year I wasn't in the group, and I went back to see them at one of their holiday dinners- so I was able to watch it from an audience's perspective. And the whole time I'm up there, I'm thinking....
"Damn, I wish I was up there doing that whole thing right now."
http://www.youtube.com/watch?v=IrBnlRRRmvI
That's a rehearsal that someone filmed, didn't know that was going on.
But like I've said, I've been in a group that has affected people's lives and it's a hell of an experience. It's one of those things where you don't get the full feel or understanding of all that goes into it unless you're in it!!