I was thinking of buying a Nook Glowlight because I often read in bed while my partner sleeps. But when I went to check it out in the store, the contrast is noticeably worse on the Glowlight, to the point where I decided not to get one. If this new Kindle can read epubs, has a light, and has contrast that's at least as good as a regular Kindle, I'm sold.

Edit: I know I can convert files, but it's a big pain to be constantly converting a big library, especially since I very often correct ebooks in Sigil.