Best/largest orchid show to attend in the U.S.?

[Orchidreamer]

I've been growing orchids since 2003 and have only been to local shows, which were nice, but I've always wanted to attend a huge show. The more orchids and exhibits, the better. I don't know if some shows got worse, or if others got better, over the years. What's the best, largest show to attend in the U.S.? I can go anywhere within the country, willing to fly out just for the show, but it'll better be worth it.

The only ones I can think of off the top of my orchid is Redland or Santa Barbara. I'm looking for a good selection of orchid displays as well as vendors to buy orchids from.