AP Photo

I'm standing on the edge of a shoulder-to-shoulder crowd—the kind of crowd where you have to apologize to seven people just to move a few feet—frantically snapping pictures, because I've got the distinct feeling that what I'm looking at is one of the stories of the year in video gaming. It's a video game tournament, but it looks more like a rock concert, complete with a huge stage up front, tons of lighting equipment overhead, and a large merchandise booth off to the side. As the tournament reaches the finals, the crowd continues to flow in until every seat, aisle and empty corner of the two linked ballrooms of the Seattle Convention Center is filled with a throng comprising thousands and thousands of people. Even when the room seems completely full, the people don't stop...