http://icv2.com/articles/news/view/32351/gen-con-nearing-limits-indianapolis
Interesting to see how this works out.
DragonCon is totally bottlenecked in Atlanta. They had 72,000 attendees.
The pinball/arcade game con in Atlanta just moved to a bigger venue.
GenCon needs more space.
San Diego ComicCon sells out in hours.
Looks like these things are way, way popular - at least with the economy doing somewhat OK.