All I can say is, after seeing 'em at Coachella, it's so nice to be in a hometown crowd that appreciates them and sings along.
The other thing I have to say is that I hate all-ages Friday and Saturday night crowds. There was this annoying chick (21+) who kept trying to sneak beer for her boyfriend (underage). She got offensively drunk and they kept going through this fight/makeup/makeout cycle through the show that was a bit distracting.