The Kindle deliveries books in 60 seconds wherever you are, lighter than a paperback book, holds up to 3,500 books and much more. I guess the Kindle has the more advantages over the paper book.
Amazon.com has several models of the Kindle. And the public library will continue to carry paper books.
Here's what C. Vincent, a customer, said about the Kindle Wireless Reading Device, Wi-Fi, Graphite, 6" Display with New E Ink Pearl Technology:
I woke up to a nice surprise this morning: a new kindle as a gift. I have an iPad and a Kindle DX, but I guess someone heard my complaints of them being too heavy and difficult to do extended-reading on. Don't get me wrong, I absolutely love my iPad and DX, but this new generation of Kindle is perfect for reading outside and for long periods of time. The iPad gets completely washed out in sunlight and often irritates my eyes staring at it for more than a couple of hours. The DX was my go-to device for those extended/outdoor reading periods, but now I have a new friend for reading novels. Instead of a replacement, this one seems more like a companion to the other devices and is a different class. The iPad works great for web browsing, shopping, productivity, games, etc while the Kindle falls short in those areas. The Kindle works great for reading novels, where the iPad falls short. For those that love to do extended-reading of magazines, newspapers, research articles, etc, I find that the DX is the go-to device.