Personally I think any animal the is deformed or injured from birth or otherwise should only ever be given to someone else. There should never be a price even if it is discounted. You never know if the deformity will cause an early death or vet bills in the future, so it would be unfair to charge someone to care for the animal that obviously has something wrong with it.

I kept one of my baby fire skink I hatched out last year because it was born with a little kink in its back. I've had it long enough know that it appears perfectly healthy besides the visual kink. Still when I choose to rehome it I will be giving it someone for free because of the kink.