Let’s talk Diablo 3. Huge game, massive release. Here’s the kicker, though. Millions of copies were sold directly over the internet, bypassing traditional game retailers like GameStop. That’s millions of sales those retailers didn’t get. Diablo 3 is the current big name, but it’s not the only one. Xbox LIVE Arcade, Steam, and whatever it is that Sony does are all taking a huge slice of the retail pie… and the brick and mortar types are forced to fight over what’s left. Increasingly, that isn’t much. ReadWriteWeb has the story.