Isn't it interesting that for $3,500 I get to set up a booth and schmooze with "celebrities". If my knowledge of these things is correct, if a celebrity likes your stuff, they would like to get it for FREEEEE. Oh, and notice the wording "..will be asked to endorse.." there is no obligation on their part to do so and I would assume the might only do it in exchange for that gift you gave them. If you add up the cost of the booth and the cost to make the stuff you have in the booth, and then to give it to them, this can be a pretty pricey deal.
BUT then again, if there are pictures of your stuff, and you with them (oooh, how exciting!) it can pay off, yet I wonder if it really does. Hey, this is a write-off isn't it??
Some how this reminds me of the Publishers Clearing House ads - "You may be a winner!".