Update: here's a 32" epaper monitor!
https://www.visionect.com/development_kits
Greyscale: $3600. Colour: $4700. There's a 13" model at a mere $999, but who wants that?
Slightly more realistically, there's the Dasung Paperlike:
https://www.visionect.com/development_kits
Greyscale: $3600. Colour: $4700. There's a 13" model at a mere $999, but who wants that?
Slightly more realistically, there's the Dasung Paperlike: