The Big Wow Comics Convention conflicted with other activities I was involved in; just made it via train and taxi, but had spent a bunch of money on a Saturday ticket and only stayed a couple of hours. Even so, had a good time shooting and getting some comics bargains.
I also shot some cosplay on a visit to Seattle, WA earlier this year, at the Emerald City Comicon. Spent a lot of time shooting.
Good example here: