I think this oversimplifies things. Would you “buy” the Mona Lisa from a random website with the condition that you have no rights to the property? I wouldn’t.

I think this oversimplifies things. Would you “buy” the Mona Lisa from a random website with the condition that you have no rights to the property? I wouldn’t. If the Mona Lisa was put on sale by the Louvre with the aforementioned clause, I would be intrigued.