From what I understand the lots sent over have already been picked through for the best and those are sold separately anyway for big money. You may find an occasional granite or het for god knows what but the big money animals are already separated before the big lots are sent over. I have seen "unopened lots" for sale on kingsnake but who knows if they really are, and even if they aren't 99.999% will be normals anyway. I would worry about them carrying disease to my own collection it would be different if I had some one to quarantine them in a completely different house but its not worth it IMHO, since I don't have anywhere else to quarantine snakes.