I still have, and use, my Kindle international. V.3 I think and the model before Kindle Keyboard. Bought upon international release in 2010. Battery life now down from 5-ish weeks to 3-ish weeks. No touch screen, no backlight but that's how I like it. Now, Amazon sent me a mail stating that the onboard kindle store will no longer function from August, but "promises" that I still can use/download my purchased content and all future purchases has to be sideloaded. I can live fine with that.
I just bought a Pocketbook Color, mostly because I was curious of the colour screen and d.t it was heavily discounted. I'll return to this post in 10 years time and report if it still works. (An if also the Kindle still works)