I went to the Denver Comic Con today. Wow has it grown in size! The last time I went was the inaugural year and it was around ~30k. This year it seems to be around ~120k. I saw Weird All, the harry potter weasley twins, Felicia Day, the guy from the Iron Fist, I think a stranger things kid, John Cusack, and some others. First year I went the only celebrity was the main actor from Eureka.
Tons of fun cosplay. Played some indie games too but didn't mention I was a dev. Their game section had a somewhat poor setup. Kerbal Space Program had a booth down in its own area.