[dredmorbius]

That depends.

For anything networked, not having access to the latest and greatest ciphers, or CA certificates, eventually causes problems. It's possible that mobile formats won't be supported. And a decade or so out, what was once a generous provisioning of storage and memory will frequently come to seem small. Android-based devices such as the Onyx BOOX line probably won't be able to get newer OS updates even if the vendor was willing to support them as Android itself seems to have a moving hardware baseline (I'm typing this on ... an older Android device).

That said, the displays themselves should still function, yes.