so alpha!
i agree w/ this. line breeding co-dom/dom morphs is fine, but don't change the base name that someone else proved out/claimed. just attached your own name to it as a designer label/line. for example, there's run of the mill no-name every day Pastels and there are designer Pastel lines. as for pricing, price what u believe your snakes are worth and the market will determine if its fair.
Banana and CG are the same. they are different lines that started w/ 2 different specimens from separate breeders. they are interchangeable for breeding purposes for breeding the same Supers or morphs. but to most pet owners, they probably don't care of line names; this will matter to breeders and hobbyists who like to track lineage. the same can be said of Butter/Lesser and a few other morphs. then there's morphs that are very, very similar like Black Pastel and Cinny which are not the same but allelic and produce similar morphs, Supers and ASL when bred together.
the other thing is some morphs look very similar or even Normal looking. like Sable, Sentinal, Mahogany, etc. etc. they don't look any much different to most peeps or first glance. they won't look different until u add other genes and see their genetic potential.