Sony are already removing paid products and shutting content servers down plus you also have the likes of Ubisoft even revoking licences and making games totally inaccessible so all in all, several games in the last decade have become unplayable. Some titles even require day one downloads to function because the disc is incomplete and about as useful as a paperweight. If a game has a single player component and can play out of the box then it's fine but there will be many titles that will become wholly unplayable.
Thankfully most of the modern shite isn't even worth treasuring which is why 99% of my games are digital now and I couldn't care less. Don't think I'll have the urge to visit The Crew 2 in 15 years time. I think after the PS3/XB360 era when physical media died and live service took over, that's when I stopped giving a toss. It's also the time the industry changed for the worse.