Speaking of e-ink: when I got my current car, the dealer left the e-ink "window sticker" in the back. It's a pretty neat system, it uses wireless to update prices, it's integrated with the central dealer pricing data, etc.
Anyway, I contacted them, said I had it, just to send me a shipping label. They never did, so it became mine.
Here's the kicker: I picked the car up on Aug 9th, 2019, so this device is at least 14-15 months old, and it's STILL RUNNING.