You may well be planning to play the Diablo 3 Market when the game is released but what about really investing in Blizzard or even other videogame publishers. An article called Investing in Video Game Stocks: A How-To Guide has appeared on Fool.com which analysis some of the recent trends and what stocks are worth investing in.
In their article Activision Blizzard is placed as a Strong buy according to Zacks Investment Research so perhaps this is something to pay attention to. As far as I know Flux has some cash invested in Blizzard so I’m pretty sure he watches the values carefully so he can make his millions 😉