Yup, for straight reading, get the e-ink version of the Kindles. If you want one to use 'sometimes' as a tablet, the Fire is fine. If you want a tablet, iPad.

If you have Amazon Prime, you can use the Kindle with the Lending Library for free. Also, you can check w/ your local library for digital titles. Many libraries now allow you to check out digital titles to download/read directly on your Kindle. Works on both my regular, Kindle 2G and Kindle Fire.