[IdiotSavage]

The upcoming INDX looks promising. But I can't see how Prusa solves the "dust and moisture" problem. They don't have something like Bambu Lab's AMS, do they?

Same problem with the Snapmaker U1.

Edit: the Snapmaker U1 also seems to have an open top, which is problematic for ABS, I assume.

[VorpalWay]

Fair, but adding third party dryboxes (possibly even DIY ones, I believe there is a common plastic box for storing cereal that is just the right size, just add some silica gel to the bottom and a tube for the center of the spool) with some reverse Bowden tubes would be trivial.

EDIT: See also https://www.printables.com/search/models?q=drybox for plenty of more fancy alternatives, including some for mounting on top of the printer.

[SAI_Peregrinus]

Instead of hanging spools off the side, get a few Creality Space Pis or similar filament dry boxes you can print directly from.