"In 2004, the folks at Penny Arcade decided they wanted a show exclusively for gaming. Sure, comics, anime, and other nerd hobbies were cool, and those activities all had their own shows… so what about games? From that idea spawned a small 4,500 person event in Bellevue, Washington, focused on the culture and community that is gaming."
You guys never heard of GenCon? Origins? Dragon*Con? or any of the numerous smaller game conventions? Even if you were originally being computer-gameer specific instead of "gamers", Dragon*Con, at least, has had a computer game component since the late 1980's/early 1990's ... I don't know about GenCon and Origins. Or were you originally specifically thinking about a game con for Seattle, and it just grew into a bigger scope over time (sorta like Dragon*Con -- originally an Atlanta area game con, which grew to encompass the south east, and is now even bigger in scope for both content and geography)?
(genuine question -- I'm not being snarky, the first thing I thought when I read it was how out of place this premise is, and wanted to know what's being left out to make sense of the statement, because taken at face value, it doesn't make sense at all)