Rake in the bucks at gun shows? That's easy, It's called 'price of admission'. People are playing into their hands, they don't know what 's in the show until they pay to get in, thinking they might get a good deal.
Then you have the crooks that buy product at LGS and sell them at gunshows for 3X the price. I have seen it. I have left a gun show, stopped at a LGS and seen the same dealers at the gun show buying product & taking it back to the gunshow, marking it up 2-3X and selling it.
I will not attend another gun show until the shelves at my LGS have filled back up & the playing field has leveled.
Crime Control. NOT Gun Control.