This article misses the point of the Kindle. It doesn't exist to save the consumer's money -- not in this version and likely not in the next, either. The early adopter pays for the getting to use technology first, and that comes at a price. A technology writer should know this.
With a Kindle, I can buy a book or newspaper for free in moments and start reading right away, without visiting a bookstore or waiting for a physical shipment. That's worth something to me. How much is your time worth?
A Kindle also gives you the convenience of having hundreds of texts in one place, with a device that lasts a long time without needing a charge. That, too, is worth something to me. How much is it worth it to you not to have to lug around bulky, heavy books?
On my Kindle, I can also search, annotate, and change the text size to accommodate my vision needs, without putting on reading glasses or buying a large-format version. That's worth something to me. How much ... do you get the picture?