Been to a few. Probably 20 or so. Large and small. Over the years have found a good deal on beef jerky, a fishin pole, an old 22, an older miltary Mauser carbine, a few boxes of ammo, and had a knife custom made from one of those medieval vendors. And bought a slip on recoil pad for two dollars. Good place to sell a used collectible shooter at a fair price and fast.
Some really good deals on new stuff, and usually some older rifles and pistols that you don’t see every day if your looking for something particular and you don’t mind paying an extra fifty bucks that you would’ve probably spent on gas making the rounds to every Tom-Dick-and Harry’s gun and pawn.
I’d say unless you have unlimited amount of time, or a job that enables you to see every gun store and pawn shop around, it’s a good place to shop for that elusive item. Even though some of the used gun dealers price their stuff on the high side. There’s still some deals to be had.

I like the medium sized shows best. Ones that don’t take all day to walk around or you have to walk a mile just to get to the door. But not so small that you can see the whole thing before you get through the door.