I have been to this fair once before. So, it's a sample size of one ... but ...
It is excellent for toys! Lego, GI Joe, Transformers, etc. And those "POP" character things (can you tell i don't collect those??).
They also really get into their costumes for this event. Plenty of Star Wars characters walking around on the floor. Snow White, etc.
There were 3 card sellers at the event i attended. Les Topolski had his cards out there. I wasn't familiar with who the other 2 sellers were.
I have to add - the "vibe" was very friendly. It was a nice place to wander around for an hour.