Chiller Theater in North Jersey is the old school and probably best one.
Monster Mania in Cherry Hill, NJ is 5 mins from my house. its gotten bigger in the past few years.
I used to go to Horrorfind in Baltimore too, but I don't even know if they still do that one.
Probably some others as well. Chiller is probably the best one in my opinion. I've met a lot of people that I never would have expected to. They have strayed from Horror a bit in recent years, but I think its cool-They get a lot of guests from old TV or ones you'd never expect to meet. I've met Pee Wee Herman and Ernest Borgnine at Chiller, Chatted with Mickey Dolenz, got pictures with Jane Weidlin. Its definitely a "fan" convention with a serious slant toward horror.
