I was trying out using product class for non product content type. For instance I tried out using "art" content type. However after trying it and realizing it wasn't what I wanted, I decided to delete the class and did get to this screen that had "Be very sure you want to delete the show product class. and ...They will be converted to the Product node type". So now I've lost the "art" content type and will need to recreate it.

Shouldn't there be an option on the delete page that lets you keep the original content type and not be converted to Product node type? Is there a way to convert it back to the original now that it's a product node type?