In my part of the country the gun show are still attended, but definitely dropping. Most people are buying bulk ammo for a discount that they may not be able to find anywhere else. Also at my local shows there are a few "seconds" dealers who don't own their own retail store but are able to access "defective" gear for a crazy marked down price. A few people are purchasing guns, but mostly from local dealers with tables at the show.
Now on to knives... The cheap knives are usually priced for more, even double, than what you could get at a Walmart or any other BBS literally within walking distance of the show. The middle of the road knives are pretty much the same price or even a couple dollars higher than what you could buy it for at any sporting goods store in town. As for the high end collectors market knives, they are priced astronomical! If it is an older no longer in production knife, it will be at least 3-4 times what you could get on-line with some digging. If it is a current production high-end knife it will be double what you could order it for today, you just might have to wait a year. Maybe they expect you to haggle, actually I am sure they do! But why bother when these people won't sell it to you for less than I could stand and order it from my phone right in front of them?
Two stories: First one was a gentleman I approached that had many(25) beautiful rifles all laid out on the table. After taking a look at one, I asked the price... mind you I probably had double in my pocket what the rifle was even worth... he said it was not for sale. In fact none of his guns were for sale. This guy bought and purchased a table just to show his crap off

Second, spotted an older Ruana that would fit into my collection quite nicely. Took a look at it, noticed it was marked probably 300% higher than the same knife on any sales forum on-line. I asked the gentleman if he had any room at all on it, all I got was a disrespectful "No" and went back to reading his book. I mean this guy has a knife marked in a way where he stands to make nearly $600 profit and him, his wife, or his dog can't even stand up!
Hey, gun show people, if you want my business ya better try a little harder. I am pretty much done going to these shows.