Don't throw away your Kindle, Jailbreak it and take back ownership. Make your Kindle even better with KoReader and other apps.
If you wanna see whats possible i recomment this Yt video.
If you wanna get started here are all instructions:
https://kindlemodding.org/
Don't let it scare you it seems complicated but its just a lot of (easy) steps. So definitely possible in <2h.
Oh, yes. I'm most cases, really old books.