If that ever actually happened to me, then maybe I'd go along with your point. But in fact... I've gotten rid of older games and books that I never played anymore (like all my AD&D and 2E books) and have not once ever regretted not owning them anymore. And I have a whole bunch of game books that I've purchased (either through Kickstarter or on a whim at a con) that the most interaction I've had with them was maybe spending an hour or two when I first got it flipping through it... but again have never touched it since. So what good has it been to have these physical copies in my closet? Heck... it's no different than me having bought Blu-Rays discs of movies I thought I wanted bunches of years ago, but then never actually once watched them a single time because I've been too busy watching other stuff on the subscription services like Netflix and Disney+ that I pay for every month.The difference is that at any time in the future you could look in that closet and decide that you want to read and possibly play the game you bought (or sell it or donate it). Since you own it nothing is stopping you. Whereas, if I feel like I don't need any more content for an RPG (because many, especially the big ones, end up with a lot of bloat) and am happy with the amount of the product I currently have I still have to pay to play. And I will never have that closet to dig through and find and old game I never tried and finally give it a shot (which I have done) if a new edition comes out and support for the old stops or a server is shut down.
So this idea that needing a physical copy of something to actually put on your shelf is I'm absolutely sure important to a lot of you... but I'm not that guy. If I'm not going to use it... I don't need it.