It gets worse. Visiting a friend recently, they tried to give me an old Kindle, (which I politely declined). They have a drawer of about 6 old ones because they can't help buying the latest every sale. They don't even read that much!!

I’ve been using old kindles for homeassistant interfaces for across the house.

That’s a good idea, but you can buy e-ink screens made specifically for that purpose, they use them in retail stores.

Those ones were free for OP though.