I'm on a team with my friends this year. Apparently, you sign up for $45-$60 (depending on if you want a t-shirt or not) then eat,drink and listen to music all day long. I have never been either, but I have heard nothing but good things!
chilifest is crazy. If your not on a team you can only enter saturday. its alot of great music and lots of beer, so much beer you will wont be walking on grass by the time its over just beer cans. and stay out of the main crowd if you dont want beer thrown on you and want cans flying through the air at you. Its fun if you like to party, not a place for a nice family get away lol