I may go, it's a 10 min drive. But I avoided it for about 10 years once they forced you to pay for parking out in a field, then walk 400 yards to the show entrance when there are tons of parking spaces right in front of the building. Oh, and it's a classic "gun show" with 50% of the tables not gun related - jerky, glasses cleaners, flashlights, indian jewelry, coins, baseball cards. And many of those gun table are like you say: people set up looking to buy from the yokels that walk in with a gun for sale, displaying guns not for sale, or with ridiculous prices. I usually see 6 or 8 tables that are not black gun dealers or non-gun sellers. Then about 10 more tables that have less than 6 guns, along with a bunch of other items. Entrance fees goes up and up each year for all that.
It's not the gun shows of my youth. But I do occasionally go and buy a gun from some dejected seller.