I think a really interesting project would be an Arduino/Pico/ESP controller and driver for the $1500 display.

Open source, wake-up timer on set interval, connect to Wifi, fetch URL, display image, go back to sleep.

Or have it permanently connected to Wifi and POST a URL to the controller any time to fetch a new image.

That way you could control the full stack and do not need any subscriptions or rely on external companies.