I’ve been to quite a few. Where I live there’s two, one in the early summer and one during Labor Day weekend.
When I lived in Atlanta, I went to AWA. It was fun, but what was awkward was that some of the tables selling home videos don’t really separate anime from hentai. I shit you not the middle of the table had Pokémon, Yugioh, and some Ghibli discs, and when I was walking to the right hand side of the table, the titles got more and more suspicious until it became blatantly obvious. Like Jesus, have a divider or something.
It’s different when you’re intentionally looking for that stuff, but awkward as fuck when you’re not.