A Kindle book may cost nothing at all or over 10 USD.
Public domain books are free (if you live outside the US though, I'd suggest getting them someplace else, as you will have to pay to cover the wireless downloads).
Most books are around 9-10 USD which is generally less than what you'd pay for the paperback and always cheaper than the hardback. Still, an 8-dollar book might be $10 or more for those living outside the US -- because of VAT.
The Kindle version is £3.99 according to Amazon's web-site. You save 50% on the cost of the paperback, by getting it as a Kindle file. See related link.
It does not cost anything a month. It is about if you buy a book then it charges you. Also 3G is free
Chromecast, Kindle Paperwhite, Chromebook, Kindle Fire
If you have already bought the book through Amazon, then it won't cost you anything to download it again. It won't matter if it's to your Kindle or your PC kindle reader.
Games on the kindle cost various amounts. It depends what game you're looking for.
about 30.00
around $199
around $199
You can purchase and download The Twilight Saga books from the Kindle Store on your Kindle device or through the Amazon website. Simply search for the specific title you are looking for and follow the prompts to purchase and download the book to your Kindle.
Samples are free.
100 bucks
100 too 120