I don’t mind. Printers often have a startup time of multiple minutes. And with printers we waste paper and we are required to refill them with ink or toner.

I will gladly use this e-Paper display instead in any situation where I want some kind of reference sheet like the parent commenter said, and where the resolution is sufficient.

Refresh time is listed as 4 or 5 seconds, depending on how big the display is.