Perhaps something like this -

Pet Quality - These are the pythons with the least favorable coloring/pattern, but the most affordable.

Beginner Breeding Quality - These pythons are mid range, showing decent coloration/pattern for the morph. The majority of our babies fall in this category. Market price.

Superior Quality - These pythons go above and beyond the morph standard, showing excellent coloring/pattern. Our breeders come from this group. Priced according to market, with additional quality mark up.

Holdbacks / Breeders - These are our personal stock. Sometimes we will have pythons here we have bred in the past, who have been replaced by their offspring. All of these are Superior Quality, and priced accordingly.