My two cents is that the manufacturers intent matters, i.e. if the "cards" in question were made on a poster sheet with the design to be cut out or not. It appears from what I've read here that the intent was not to cut them out as stand alone items, meaning to me they are not cards. As for supply and demand, I always try to distinguish degrees of needs vs. wants. It's all wants for me except t205's which of course are serious business