Hi Kitty: I'm over here in Fort Smith, and I've gone to the expo in Tulsa....Not very big at all...There's also one in, I believe Fort Worth. Since that's next to Dallas I would expect it to be bigger....My buddy and I used to sell our hatchlings ( I bred Leopard Tortoises and several species of rat and king snakes) at the Orlando, now in Daytona Beach FL.....I know it's a long drive, almost 2 days, but it's huge...Actually, it's getting a little smaller than it was 10 or so years ago!...I think the issue is there's a lot of expos....
If you go to kingsnake.com there's a schedule of the upcoming expos.

Good luck, I'll be coming to LR in March, I'll just do the half marathon.....It's March 3rd, and LR puts on a good race.

Lloyd