For anyone looking for a more open experience, I have had only positive things to say about the Likebook P6. It's a 6inch android powered eink ereader that is around 120-140. It only has 1gb of ram and aggressive background task sleeping so it's not going to competing with any regular tablet, but it's a lot better than kindle in my opinion. You can run the kindle android app, libby, overdrive, scibd, and my favorite app for reading Moon+ Reader.<p>It's not going to be as simple as a Kindle but for anyone who understands what sideloading is (books or apps), I strongly recommend it. There's are larger screen p78 (7.8") and p10 (10") as well. And if you care about having stricter quality control and are willing to pay, Boox products also an option. Boox also run android.<p>After I jailbroke my kindle keyboard and then my kobo glo hd, there's no way I could ever go back to limited reading formats. The most useful app in each situation is KoReader.<p>KoReader runs on Android and so before you decide on a ereader, try our that software and see if it's something you want to live without. It supports "(PDF, DjVu, CBT, CBZ) and reflowable e-book formats (EPUB, FB2, Mobi, DOC, CHM, TXT)" and runs on Kindle with jailbreak, Kobo without Jailbreak, Remarkable, and android so Likebooks and Boox.<p>And Calibre is the useful regardless od what ereader you have, it's even great for iOS.<p>Kobo has dropbox sync and Android has a native app as well as apps like foldersync to do native syncing.<p>If you're okay spending a little time setting things up how you like them, Kindle is the least competitive device on the market in terms of features.