After day 1, most anything really worth buying firearms wise, has already been picked up. It really depends what you're looking for.
If it's just fun and entertainment, then it doesn't matter as much. Gun shows have pretty much evolved into giant flea markets. Everything is for sale. Books, jewelry, magazines to fit every gun ever manufactured, enough duffle bags and gun cases to supply the Fifth Army. All stuffed with enough paper to deforest Brazil.
Tee shirts, surplus ammo cans, knives and swords, bags of reloaded ammo, belt buckles commemorating everything except Mr. Clean's birthday. Even puppy dogs are all available at the larger shows.