I went this year, it was great! I had quite a few goodies in my bag too! A bridle, a nice halter, clippers, leather cleaner, and a new cowgirl hat! You can find some awesome deals at the Equine Affaire too.
Horse World Expo hits Harrisburg, PA every year in February, and although this will only be my second year attending, I can honestly say that taking a day or two to attend is well worth it. Between the horse clinics, vendors, exhibitions, they cover just about anything you could possibly want to know about horses. Plus, the shopping ain't bad either!!!
I know that sometimes the prices at expos aren't all that great. But when everything is sold all in one place, and you see so much horse stuff, you can't help but buy things. At least I can't!
Sometimes you are able to compare items and prices in the same location. Sometimes the prices aren't any better than if you were shopping at your usual supply outlet.