OK, I guess I owe some gratitude to Amazon for their development, it is time to pay it back....
I am not working for Amazon or any company related to the promotion or similar.
I bought a Kindle last month as present to my wife.
It is the Kindle eReader, Wi-Fi, 15 cm (6 Zoll) E Ink Display
This is the Kindle but NOT my wife! 
My opinion on it is that it is one of the most amazing pieces of HW I have ever seen!
because:
- amazing battery life (a couple of weeks up to a month per charge, normal USB chargeable)
- extremely light (lighter than a paperbook)
- amazing screen technology! Never seen something like this, you can read under direct sunlight, even while wearing sunglasses, and the more light falls on to it, the more white (like a book page) the screen looks like.
- you can adjust the size of the text (the older you get, the bigger it has to be
)
- you can e-mail to your "Kindle-e-mail-address" (you get a specific one with the Kindle you bought) any PDF, DOC, etc file and within minutes it will be converted to Kindle-format and be sent to your Kindle (provided your Kindle is within WiFi network)
- All your books and files you sent to it are stored centrally at Amazon (you do not lose them if your Kindle get destroyed).
- You can share the books among the Kindles of your family (provided the Kindles are all under the same Amazon account).
- It costs 99USD or even less depending on the country.
- It saves a lot more space having a Kindle than filling up tons os shelves with paperbacks.
I am using it because I live in a country where it is very difficult to buy German books.
Now I can log into Amazon Germany, buy the book I want and within minutes it will appear in my Kindle. Previously, I would have to wait for weeks for a German paperbook to arrive (and it would cost me 2-3 times the cost of the book due to transportation costs).
My personal opinion as a user, Amazon did a great job with this Kindle model. And the price is right, too.
~S~