"it's also because with full digital you can't get cheap physical copy sony see no money from."
You said "Sony see no money from". And that is false, because those physical games ultra cheap didn't sold 1 year ago, Sony got the royalties money from 1 year ago at full price.
The game will have legs if people want to buy it. Games like Horizon are manufacturing yet today at lower price, or you really think the copy you could buy today, was manufactured 4 years ago?. Only games what were commercial failures don't have legs. So, physical copies don't damage legs anyway
Buy Preowned PlayStation 5 Games and Hardware. Save a lot at eStarland.com, one of the largest selection of pre-owned games, accessories and systems from Atari to Nintendo Switch available.