This is a very interesting topic to me. In my research for breeding (my plans are to start with a couple clutches in about 2-3 years), I have read many accounts of people keeping snake-eating snakes or other reptiles (tegu / monitors) to dispose of their still borns, dud eggs, or severely deformed hatchlings. I actually began looking into this as I would like a humane way to dispose of animals that needed to be euthanized, without having to crush their skull. I had read that some people keep the same animals and also feed normal hatchlings to them as well.
Honestly, I'd feel better about giving a snake a humane death with a good use / purpose (feeding them off) then selling to a re-seller wholesale... That said, I'm assuming that if you are breeding in enough quantity to be able to wholesale to someone, then you have high expenses to cover and any amount of money you could get would help, so I won't judge lol.
Personally, I think my game plan is to breed so that I do not produce any normals (recessive x recessive).
I think normals are still great animals, but as others have noted, the market is just so crowded and it is hard to convince someone to buy a normal when they can have a "prettier" morph easily.