Thanks for a load of great information, all of which is very helpful.
Sounds indeed as though the $79 new Kindle is a bargain all right, as all I want to do is read, so that is very attractive.
One more question. My K1 of course has Whispernet that connects everywhere on the Sprint network. As the K4 does not have 3G, I don't quite understand whether it is possible to get a book sent wherever I am if it is in ATT territory, or only via WiFi. I know I can do this at home with my network, but often I want to buy (after reading the sample) a book while away from home. I can do that now, can I with the K4?
Disclaimer: In my post, I wrote "iInk" rather than what I well know is "eInk." Just shows how persuasive that damned Apple advertising is.