Imagine how much of a selling point it would be if <new console> said "and for $60, we're adding official emulator support from <reputable emulator coder> so you can run previous versions of our games. Use a USB to load your own roms or subscribe to our extensive, near exhaustive database of official roms, including verified rom hacks"
Like, actual support for kaizo or randomized games, let's the fans do the actual work, you aren't releasing part 5 of a game that's last entry is a decade old on a completely different form factor of a system.
Like, a decade from now Bloodborne is going to be flat out inaccessible. Metal Gear Solid 4 is that way basically already. PS4s are already falling apart, I've got to give mine a thump in order for it to seat and read a disc properly.
But I'd pay $100 for a widget that slots into a Switch's cartridge slot or USB-C that lets me play DS and 3DS games.