Also don't go alone if you can help it. Go with a friend or two, make sure that all of you know what each other is looking for and then scatter out looking for things that your buddies or girlfriends are looking for. Keep in touch with your cell phones and if you come across something your friend is looking for make sure that you let them know what it is you found, condition and where it's located. Let your friend do the haggling, after all it's their money.Bring your phone. With cell phones,people know what they got. Like was said earlier,there's deals out there,but they are few and far between. Cash talks BS walks.
First of all..... DONT GO!!! It'll be habit forming and cost you thou$and$ or more, over your lifetime.Here's what I suggest: bring cash, look around the whole show before you buy anything, and don't hurry. Costs can be all over the place. And expect to see a lot of garbage. There are some good finds but you have to dig for them.