Jim, very informative video, thanks for posting.
Both my wife and I have Kindle 2s. She's an avid reader and got a Kindle when it was released in 2007. She got tired of me borrowing her's so she bought me one a year later.
Downloading user manual's to it is a very handy feature. It's also great to be able to download a single edition of a newspaper, magazine or sample of a book ( try before you buy). Most best sellers are $9.99 and there's many free books available too.