And it was clearly marked as being edited. Should I be restricted from modifying products for my personal use? If not, what if I choose to pay someone to make

And it was clearly marked as being edited. Should I be restricted from modifying products for my personal use? If not, what if I choose to pay someone to make the edits for me? If that's okay, what about purchasing an already edited version? If it's clearly marked as an edited version and I'm purchasing the original as well, I really don't see the problem with a value added product like this. If I produce some content and people choose to edit it, I really don't care as long as they give me the proper credit (as in, they pay my retail price) and clearly indicate that changes have been made (as well as a list of changes). Something like "X by Y with modifications made by Z (detailed list of changes inside)", where X is the work, Y is the copyright holder, and Z is the retailer.