TTRPG gamers, like War Gamers and CCG gamers, are weird with money.I would say that a D&D Beyond subscription model should address that...but the same people who don't want to buy new books may not be any more happy about paying a subscription for buying classes, monsters, etc. piecemeal--I can see the gnashing of teeth over "microtransactions" as I type this.
They will scream to the Hilltop that X, Y, and Z broken.
If you offer them a book with fixed X, Y, and Z in it , they will scream again that they have to buy X, Y, and Z again.
If you offer them a service that lets the dev/publisher patch X, Y, Z electronically, they will scream again that their collections are locked in that service.
But if another smaller indy company does the same thing, it's "shut up and take my money".
Wait... that 90% of fandoms.
That's another benefit of D&D's dominance, it covers the smaller guys from scrutiny.
(Insert Gordon Ramsey: Oh Dear Gorgeous/You %&*#ing Donkey Mme Here )