I know right!
Consumer market is all about quantities and pricing, so it's really hard to launch a successful consumer product in this space as E Ink internet connected photo frame is as niche you can get.
We actually offer a device that can be used in this way (it's intended for business use) - it's a 13" device that will work up to a year on battery power, can be mounted with a magnet (no drilling) and has a Red Dot award for design (https://getjoan.com/shop/joan-13). You can upload images or connect whatever webpage you want.
So you asked - we delivered. :)