Ethical dilemmas...
How about the responsibility for each animal you produce...
The act of selling a animal by misrepresenting the genetics...(hets)
"Flipping" snakes with or without holding them for quarantine...
Selling animals to a buyer who is not ready for them... (both animals like hots to inexperienced, and selling a pet to someone without information on proper husbandry)
Importing species commonly bred already vs importing any species at all...
Selling "dinkers"...
Selling wholesale vs selling only to individuals...
Feeding, both live feeding and simply feeding(vegans would have issue with using any animal for food, including for pet food, especially when it's used whole and obvious)
I'm not necessarily opposed to any/all of the above topics, and do not imply in any way that any/all are bad or good. I'm only suggesting issues that have been debated in the reptile world or outside the reptile world.