Why would it cost much more $ to breed the two normals? It cost nothing to breed ball pythons. You have to pay for feeding (either by breeding your own or buying the rats) and heat true. He already owns the two snakes and already has to take care of them. The babies can be sold relatively quick. Heck if he gets 5 eggs he could make back $100. I don't see how breeding them is going to cost so much more money than what the babies can be sold for. Besides the experience of breeding balls and hatching the babies is well worth the minimal amount of money to feed and care for the babies than the extra $$ that you make from selling them.