This makes a lot of sense tbh.
I was also debating a while back to getting the discless version of the PS5 because of this. I got a switch recently and loved the convenience of having my games on the system itself. I was thinking of getting a PS5 to be discless to enjoy the experience as well, but I thought of still making that purchase with the disc so that I have the PS5 as the new blu-ray player and if there is the off chance of the PS5 to read older playstation games like PS3 and PS2, which it very well won't, but I am hopelessly hopeful in these things
And I guess over time, I could make the upgrade to the PS5 to have it have more storage than what I got initially. And probably then, I would likely repurchase some of my favorite games on PSN occasionally if it ever comes at a significant discount.
A part of me does hope that the PSN would have a method in which it could read the PS discs that you have and would offer the player a significant discount to have that game be digitally purchased. It may be a single use thing per disc so that every time a recognizable disc that has been unclaimed, you could opt for the digital version to make the most of these games. Then again, this could also be abused if players could just get a used copy of the game and download the digital version in a cheaper cost than normal. I doubt this could happen.