I can't speak for everyone but from what the early word is, the droids haven't been the harder figure to buy... It's been Luke. So, there may be plenty of droids coming home with folks from the convention... Just a word to the wise.
Well the Concept r2/c3po is $20 (if you bought the 4 day badge you get 4)
Hasbro is only limiting the Luke concept to 2 per person, but they are not punching a whole in your badge so I guess you can get back in line and buy more.
FYI, when you buy something at StarWars Shop, they give you a pack of free trading cards ( actually 4 cards)
And the guest bag comes with two more sets of trading cards.
They are also handing out a new figure "card" Friday was Vader and today was luke..and you also get the convention coin..