I find the best way to "deal" at gun shows is to do all your homework before you go. Know what you are looking for and know what it costs. I find of late that I get better gun deals on line or even at some of the local gun shops.
Went to a gun show this past weekend with the specific intention of buying some .45ACP ammo. The guy I usually buy from was out of stock so I was reduced to going from ammo dealer to ammo dealer to see where I could cut my best deal. Ended up buying 2000 rounds (2 cases) at what I would consider a deal ($315 per case).
The point being is that I knew what ammo was going for and I knew a deal when I saw it. My buddies that were with me just bought several thousand rounds of the exact same ammo on line but paid $15 more per case plus another $23 in shipping expense. Only advantage they had was they didn't have to lug it to the car as theirs was delivered to their front door.
May the Schwartz Be With You.
NRA Life Member