The smaller shows like the ones seem to be the same dealers with same stuff, the larger ones like at the Fairgrounds, River Center, Minneapolis Convention Center, St. Paul Armory have more room hence better selection. I have noticed a change over the last 13 years in Twin Cities shows. There used to be a guy that was from southern MN that would have 8 tables stacked with NIB Remingtons and Loopy Glass. He sold allot through the Gun List too. And, he had good prices on the stuff,too.
If you look at the lot of us, recreational shooters. You basically have four types of us:
#1 The guys that go for low end / low tech who just want to blast the ammo down range for the fun of it. Hence your centerfire SKS, Kel-Tec, and HiPoint fireams and the old stand by 22 rimfire. And,they do not probably belong to the NRA, either.
#2 The guys that get gear for deer and bird hunting. Practical shooters so to speak, they get the job done with the standard equipment. Or the guy that just wants to exercise his right to own firearms. These are the NRA members.
#3 Then you have the hunter/collector/shooter the people that shoot for sport, competition, and hunting. They have higher expectations of guns and accessories with respect to resale, performance, and value for the money spent. This the the heart and soul of the NRA.
#4 Then you have the highend shooter/hunter, who are just plain snobs! They are the types with "Repeal Concealed Carry", RMEF, DU, and PF stickers. They have guns but do not respect others rights to own them.