Hahah, well, more power to them IMO.
This isn't really anything terribly new to video games. Especially for eye candy. When BlizzCon occured last year, people were pissed that you got a Murloc pet for attending... so it was basically looked at as you paid $80 for the pet rather than got the pet with your ticket price to go. This is less devious than the proposed Trading Card Game Blizz is supposed to be putting out this year with "rare" cards that will give you items in game.
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