Depends on what happening that day or the next few. What showing, who guesting, who gonna suck jacob's dick on stage. I can't say anything since there no announcements, but plan on going to what you want and if you don't see anything you want to attend then going for a day or two won't matter.
Since i go to buy shit and get free swag i can get away with the first day. But a 2 1/2 day trip isn't that big unless you live away from southern cali or need to work soon.