It hadn't even occurred to me to be looking for rodents, actually. I have no idea what one sees at these shows, but I really like reptiles, so I thought it might be something to do.
I get my rats from a Pet World close to my home, they have the best variety of sizes I've been able to find. I would def not want to breed my own, I only have one pet snake so I don't think it would be worth the trouble at this point.