A dinker is any ball python that the owner thinks might carry a morph gene, but isn't sure. This does not include "possible het" snakes that have a certain percentage of possibility of carrying a gene. Generally speaking, it's a normal snake, that looks mostly normal but may look slightly odd or different and the owner thinks it may be genetic and wants to breed it to see if it throws any morphs or at least babies that look the same "different" as the parent dinker.

You can pay more for dinkers if you want to give it a go, or you can pass them by and hope that next year the owner isn't showing off the brand new purple and blue morph that he hatched out of them. You're buying a possibility of a morph, and each person has to use their own judgement as to whether it looks like a dinker, a normal, a known morph.. and pay accordingly or pass it up.

It's not wrong to charge more than "market price" for ANY snake, whether it's a dinker, normal, morph or half sasquatch. If the price is too much, people won't buy it. But it's THEIR snake, or YOUR snake, or MY snake and as the owner, you get to say how much cash you would be willing the trade the snake for.