If this yielded such strong benefits, then everyone and their mom would do this - and on PS4/XB1 too I reckon. But they don't. Not nearly everyone who wants to buy physical will go digital because of stock issues: plenty will just move on. Internet around the world isn't good enough got plenty of people to just have everyone decide in a whom to go digital instead.Actually, isn't it in their best interest to stop cart production nearly completely? Selling all digital copies would yield the most profit would it not? It would also provide the added benefit of destroying the used game sales of which they see no profit from.