Nis, I think situation does not apply to digital content and hobbiests.
You have to realize how easy such landscape creation is. Even if there was only $1 as a price tag, then a hobbiest with 1 hour nothing to do and a ready to fire workflow could decide to squeeze a couple of landscapes out of world machine and put them on the market place. He would not have lost anything. There are no jobs at stake here if sales fail or something like .