I thought the lines were handled fairly well at Anaheim. Other than the opening TFA panel that I waited overnight for, I skipped the really popular panels. It was my first Celebration and I didn't want to waste most or even part of a day waiting in line, especially when I could just watch anything I missed on youtube later on. Ray Park, Ian McDiarmid, and Anthony Daniels were all on the main Celebration stage, and I was able to walk right in no problem without waiting. For the few smaller panels I went to I didn't wait more than an hour. And I'm lucky to have seen the TFA props exhibit on the first day without having to wait too long, because from what I read that wait was 3-4 hours the rest of the weekend. I think the real disaster was in how completely oversold it was, not necessarily how it was managed. Because no matter where you went or what you tried to do, there was going to be an insane amount of people doing the same thing. The biggest complaint I heard from people, especially from those only attending one day, was in how little they were able to do simply because of the massive amount of people there. The Celebration store is the only thing I saw that was actually poorly managed. That, and the forgotten queue room of people waiting to see Episode III.