Man, who doesn't love Galaxy Quest? It's the best movie about science fiction fandom and the best Star Trek movie. And since it came out, I've learned to recognize many more of the actors, including Sam Rockwell, Enrico Colantoni, and Justin Long. And seeing Sigourney Weaver complaining about being cleavage-baring eye candy makes me laugh every time,
I do think that the Galaxy Quest convention in the movie looks really good, especially if it's just the "Southwest fans" version. They've got a surprising number of dealers there for a single-show convention.