Another different point of view.... The OP had the worst gun show he'd ever attended. Being an open minded kind of guy, I'll venture the guess there have been worse ones over the years. Bet I've even been to one or two. My worst was a show put on by a small time operator. His name was Jerry Taylor, and at least he tried. But the bad show was down in central Kentucky. He'd only managed to get about 7 tables sold. Worse still, some of them were his. Filled with his ammo stockpile to make it at least look a little more attractive. He gave us back our admittance money.
But another of his shows wasn't much better. There were maybe 20 tables, total. And I walked it in maybe 15 or so minutes. But I noticed a table set up on their little stage. The kind a band might use. It was only one step higher than the main floor. So I walked up and looked. And in one of the locked cases, the guy had a knife that looked the world like a Randall. Couldn't really tell because it had other knives on top of it. My guess was the entire contents were transported in the case, getting mixed up a bit as they were carried. But the handle shape was pretty distinctive.
So I walked down to the nearest table and asked where the guy was. And was promptly told he'd gone out to get breakfast. Not long after a happy, jollly kind of old farmer type came into the hall. Overalls and a smile. Along with a big shopping bag from McDonalds. The other hand had a carrier with a bunch of coffee cups. Not the 4 holer we usually see. He had a dozen. And he walked along, passing coffee and egg McMuffins as he went. Betcha none of you cheap skates have ever bought breakfast for the crowd.
So when he finally got the formalities over, I went up to him and asked if those were his cases up on the stage. He laughed and said "bet you want to see that ole Randall". So I nodded and he said " I'll need at least $150, not a cent less". So we went up and looked, and I paid his price. And it didn't even have a sheath. But the truth here is that would have been a terrible show had I not seen that knife. As it was, I felt it was a good gun show. And the moral here is you only need to discover one treasure for the show to be a success. Just because you didn't see anything you wanted doesn't mean the show was bad, just that it was bad for you.
The same promoter had another show he put on, up in Paris, Kentucky. I got there late. With all the usual suspects outside, sitting on the guardrail that protected the county fair building from errant tractors I guess. And after you've been haunting these shows for a few decades, you get to know the folks. It was probably 10:00 and was greeted with "yer late". Well, in all honesty, I had to go into work before starting the hour and a half drive.
So stopping to chat for just a minute, I asked if there was anything inside. One of the guys I'd bought things from in the past knew my like for S&Ws. He said the only thing I'd like was a "chrome plated 44", and that it was "way overpriced". Sounds like our complaining posters here. He said it was walking around, which translates into a private seller. It didn't take long to find the guy and his gun. He was asking $700 for it, and he had no takers. This was a show where often the prime meat was a single shot shotgun. So being polite (always), I waited for the vendor to rain on the guy's parade. He apparently wasn't the first that day. So when he turned away, I asked to see the gun. And I even frowned when I saw it (its a negotiating tactic). So as I was turning in over and over (like a gator with a meal) I noticed it was a Triple Lock, in nickel, and it was surely a 44. So I uttered the mandatory "its a little high", I noticed the caliber on the left side of the barrel. It wasn't 44 S&W Special, it said 44 Winchester. Hmmm. And no one else had noticed that little detail. So the prospective seller said "I could come down a little", and I said "how much?" So we agreed at $650, and I took home one of maybe a dozen 44-40 Triple locks S&W had made. Yeah, it was a lousy show for most of those attending, but not for me. Its been over 10 years now and I still remember it like it was yesterday.
Might have been the worst show ever for you, but it sure wasn't for me. I still rate it at just about GREAT. And there was nothing else that interested me. So what do we have here? You're being too picky and don't recognize the steals? Or your interests aren't wide enough to include the great guns and knives? Not sure what makes a show great for you.