Amazon may have just released a new Kindle, but right now, bookworms should set their sights on the fancier Kindle Paperwhite. During the company’s October Prime Day sale, the standard Paperwhite is just $100—$40 off, and the same price as its more basic sibling. At the same cost, it’s a no-brainer to opt for the Paperwhite’s extra features. You get a larger screen, waterproofing, up to an extra month of battery life, a more evenly lit screen, and the option of warm lighting for nighttime reading. Still leaning toward the basic Kindle and its 16GB of storage? The Paperwhite Signature Edition i…