Those kids aren’t all World of Warcrafters, Eric. Some are Guitar Heroes. The Dallas event is one of many for the World Series of Video Games. Yes, a large part of it is WoW, but there’s also, apparently, Quake4, Fight Night Round 3, and Guitar Hero II, which gives me an excuse to post this link to a video of a shred-off between David Cross and J. Mascis (aka Dinosaur Jr). Fun for watching.