I went to the 2012 Vegas shows. After your picture was taken at the meet and greet they handed you your lithograph (? carboard poster thingy). I got two because my ex was with me. Luckily I was staying at the HardRock, so I went up to the room and deposited them for safe keeping before the show started. I saw numerous people trying to enjoy the concert, have a few drinks and hold their lithographs during the show (crazy).
Anyways, I sold one on ebay (I didn't need 2).....don't remember but I think I got $100 for it, but it was in perfect condition and i spent $20 mailing it to the guy, The other one I had framed (cost $200) and hangs in my living room.