I think they will keep their value pretty well as they are recessive. I think the market will go down like all markets. As for your concern on rehoming, I believe if pieds keep a marketable price, people who have the ability to put money into a snake will also put care into them. I certainly wouldnt spend alot of money on something that I didnt really care for or want. I worry about all the normals out their that are just "a cool thing" or an impuse for someone to buy who really will not care for the animal. I am not saying that all people who buy a normal snake will not provide proper care because thats how I started, but I've seen far too many mistreated snakes. I would suggest if your going to breed and sell providing education or a care sheet for all potential buyers.