I would say most reptile show breeders are pretty reputable. With that being said, I always look at the vendor list on the show's website and check online for any pros or cons. I also look here on BP.net and check out some of their posts and their reputation. Once at the shows, I always talk to the prospective seller and try and get a sense of their knowledge on BPs. I also look at the overall health and display conditions at their table and I even sometimes ask around to other vendors at the same show about the dealer in question. When we set up at a show, I stay completely honest with each customer because my philosophy is that a happy customer will only add to your rep and bring future business back to you! This hobby/business is only as good as the people selling the animal and the knowledge we give to ensure the health of the animal. Hope this helps!