I stumbled across this guy's blog. He's an actor who usually blogs about whatever production he's in at the time, but frequently writes more general pieces. This one is gonna get a lot of "amen, brother!"s from a lot of people.
And this one does an even better job of explaining why so many of us continue to do community theater, and why you even see whole families working together (I've seen 3 generations working on a single production). At its best, it's family in the best possible sense of the word. Warning: have a tissue or two handy.