Gun shows are also educational, especially antique gun shows where there's a lot of old guns to learn about.
Sometimes gun shows are a good way to make contacts with some of the area vendors. Obtain their business card, find out where they're from, what kind of services that they offer and what kind of guns that they specialize in.
For instance, I've become familiar with a Walther importer and know where to find parts and have service done. I've found a local vendor who had a supply of long discontinued guns for sale that he didn't even bring to the shows. I learned about vendors that specialize in High Standard parts and Winchester parts. Vendors will often hand over their business card and invite someone to contact them anytime after the show. They can be a wealth of information too.
Gun shows are more than just about buying guns. It's about meeting business people and actually getting to know more about them, learning about gun models and products that you never knew anything about, and the market values of guns even if you're not interested in buying them. The prices, products and people all have a story to tell.
And by going to a gun show a person can also learn how to haggle. Sometimes talking with a vendor is better than walking away!