I feel like one of the big reasons I'm more into ROMs of new retro console games than carts is because I think it's actually a really big improvement that modern games can continue to get better after release now without having to buy the game again, and in that medium they actually can.
Lots of old games have really serious bugs (like the initial releases of Castlevania and Animal Crossing: Wild World being able to just crash) that, due to their medium, are just going to be there forever with no resolution aside from tracking down a later version, and that sucks.
@NovaSquirrel galaxy brain: make cartridge reproduction itself a hobby project, publish print material but leave the production and assembly to those who want to make the effort
@elfi Yeah that's something that could be fun and comfy. There seem to be a lot of services where you can just give them a ROM and they'll ship you a cart, or at least a board for a cart.