It’s kinda not only customers fault. Sony charges much for the bd version plus 9/10 of the games require huge downloads and installs even if they are physical. Most people just don’t see the point anymore.

If the disk cannot install and play the full game, then it holds little value as physical media for preservation. At that point the only value it has is for collectors.

Or someone who wants to resell it when they’re done playing it. Us old dudes did that often. You could always get a little of the cash back from a game you could use to put toward a new game. With digital it’s full price and no resale.