Disc Rage Isn't About Discs
This is a hot take that deserves a fuller treatment, but:
The outrage about Sony giving up on producing physical discs isn’t about discs. It’s about ownership.
Physical game sales are super low, and PC gaming has been essentially digital only for some time without an uproar. But, like—thanks to sales and bundles, PC games are often available at deep discounts. This is becoming more true for console games but they do lag behind, and so the option to buy used is much more important there: even if you don’t buy physical, the fact that it’s an option puts a cap on what the digital store can charge. And a lot of PC games (especially if bought on GOG) can easily be backed up and played completely offline, whereas it’s not at all unheard of for even single-player games to become unplayable if PSN goes down… unless you have the disc. And of course there have been multiple news items recently about PSN closing digital stores (which isn’t new) and removing content, including from the libraries of people who spent money on it—again, having the physical media prevents this entirely. (Patches notwithstanding.)
The lack of physical media on PC isn’t that big of a deal, because that platform is consumer-friendly enough that you don’t need physical media as a bulwark. But Sony have repeatedly demonstrated consumer hostility, and physical media is an important defense against it. Without physical media, the PSN store becomes a true monopoly (especially for first-party titles since Sony is no longer bringing their games to PC) and consumers are subject to their whims. There will no longer be (legal) ways around their DRM and expired licenses. And rather than passing on the savings, I think we’ll see less discounting of PlayStation games now that they won’t have to compete with the physical and second-hand markets.
That’s why people are mad about Sony ditching discs. Because it’s them consolidating their control, so they can be more monopolistic and consumer-hostile.