I got a Kindle because it isn't backlit, and I'm so happy with my choice. I had been reading on my phone and it was wreaking havoc on my eyes. I got a Kindle case with the built-in light that works perfectly, but does require more charging to keep it powered. Plus, I'm another one who lives at Amazon, so the Kindle was the natural choice for me too.
ETA: Marie, the Kindle comes in 2 sizes.