The Gibralter Trade Center is likely considered an entertainment venue with a seating capacity of over 2500, which means that carrying a pistol inside on a plain vanilla CPL was a no-no.
I've heard that the GTC funshow is the best one in the state. I'm glad that I didn't make the trip out from the west side of the state, and waste my time.
I usually only go if I'm looking for several specific items. The $6 admission is like paying once for shipping, and the prices for most accessories are the same as they are online, only I get to see them before I buy them.