Every Petsmart that I have been to (I think 4 different ones) has had "ball python" and "fancy ball python" labeled and priced differently. I'm not sure about local pet shops because there is only one where I live that sells snakes.
Edit: and the less BP-educated employees seem to know the morphs as "fancies". One lesser was affectionately referred to as "the gold fancy" at a Petsmart I visited recently. She didn't know it was a lesser but she knew it was a morph.