I don't know how your gun show went, but I did my first one last December in Jackson, Mississippi. Between the various holsters I made as "stock", the booth fee, and the banner, I MIGHT have broke even. I took 3 custom orders and sold 1 holster. Granted, I didn't have anything super sexy on the table. But my personal observation was most people at this show like to window shop and most are looking to get something for nothing. I might do another show next summer, but for me it isn't worth it. It was weird because I was the only leather vendor there.
Most people seemed more interested in the kydex booth where they'd make you a $15 holster on the spot.