Yep, tiny shows often have the best guns and deals.
Years ago I was pretty bored and decided I'd drive down to the Paris, KY show. Often the promoter couldn't get 30 tables filled. It was held at the county fair grounds, and if you got there fairly early you could park on pavement, later on gravel. After that, it was pasture land for you.
Well, I got there after the drive and parked in the gravel. Outside the fairgounds building, they had a guardrail (I guess to protect the building from drunken hillbillies). Firmly planted on the guard rail was the backsides of a half dozen gun show regulars. Some smoking, some chewing, all conversing and BSing. As I got closer I realized I knew about half of them.
Just being social, I asked if there was anything worthwhile inside. The one grizzled old character knew me fairly well and said "the only thing inside you'd like is an old chrome Smith, but the price is too high." OK.
So inside I went, looking both for the birddogged gun and anything else.
It took maybe a half hour to find the guy trying to pander the old "chrome" revolver. He was trying to sell it to a vendor, who didn't have the $750 he wanted in all his guns, total. The deal was doomed, so I had the good manners and time to wait it out. So as the guy turned to walk away, I positioned my self so I could ask him what he had there.
He said just this old gun, and handed it to me. As he did so he said he wanted $750, but figured he wasn't going to sell it for that. Just about the time he was saying he could probably take $600 for it, I turned it over again and on the left side, the stamp didn't say 44 S&W Special like I'd assumed, it said 44 Winchester.
Well, back then I hadn't had any heart trouble yet, and my poor ticker was doing some thumpity-thump'n. So I started digging and came up with 6 Benjamin's. The rest was history, and how I came up with a 44-40 triplelock, at a tiny show everyone else would have saved their time and $5 admission. As I was leaving the same group was still holding court outside. They laughed as I came out with my new toy, and commented something about one being born every minute. I like being able to amuse other old guys, so we all came away happy.
This weekend we'll have the OGCA show, one where everybody is pretty sophisticated, and you won't score any screaming deals or discover anything rare at fair prices. 2 weeks is a Lexington, KY show where there will be a bunch of tables occupied by old hillbillies like me and Joe. Always something possible. The October 15th is Court Days and there will be all manner of individuals haunting the bridge and area's leading to it.
Once I found a 632,200s K22. He wanted $450 for it, and back then prewar K22s were selling in the $300s. So I passed on it. Then got home, reread the first one being 632,132 and realized "my" gun was in the first 150 guns. So being a patient kind of guy, I went back the next year (this time with my wife). I found the same guy, with the same gun, and he still wouldn't budge on the price, so I bought it! My wife asked what was so special about it, so I told her. She asked how I knew that, so I told her SCSW told me.

When we got home, I showed her the page. She asked how much it was worth, so I told her probably double what I paid. That at least shut her up.
Two years ago, at the same Court Days event, I found a nickel M58 in great shape, and had to pay $550. A little farther along a guy had a 396 no lock gun, and wouldn't budge off his $650 price, so I bought that one, too. Fine additions to my fledgling collection.

All at "gun shows". I could go on for hours. I'm sure I miss more than I score. Others out and about who are more astute buyers probably catch many of them.