Its a legit question. In the past years, pre-registered package holders don't have to pay for the autographs. They do however, sell autograph cards for day walk-ins. Hope that helps.
Ya, Botcon is one of those nice cons that you don't have to pay for autographs if you get one of the packages. I've been to other cons where you pay $300 - $400, just to get the good seats for the panels, but you still have to pay more for the autographs. One of the cons, the person just got up and left during their autograph time. We couldn't even get a refund for the autograph that we paid for, but didn't get (luckly we used a credit card and they refunded the money).