We did Droid Depot on opening day at DHS and it was a blast for my 6 year old. Purchasing accessories was a little frustrating because it was a pretty long line to check out. Not sure how others got a discount on those, perhaps via AP or DVC, but it's not like you get an auto discount on accessories due to building the droid. Also, at least on opening day, the backpack price tags had nearly all been removed (the price part at least) and rang up as $50, not $40. Luckily, we happened to have picked a backpack with the original price still attached. It rang up as $50, so we asked why given the tag said $40, and they price adjusted (after a wait for a manager approval). Sounds like they tried to make a little extra given how popular those are . . . not sure how to feel about that. Have the prices gone back to $40?