Three versions of the 7" Amazon Kindle Fire HD, including the newest quad-core powered model, the Kindle Fire HDX, are marked down by up to $30 at BestBuy.com. This sale has the best price we could find for the 8GB Kindle Fire HD by $15 and by $10 for the 16GB Version. However, the best pick would be the $199.99, 16GB Kindle Fire HDX that becomes the best price we could find for it by $30. It has a 7" HD display with a 2.2GHz quad-core processor, 2GB of memory, and a battery life of up to 17 hours while reading eBooks, watching movies, surfing the web or playing games. The shipping is free on all orders and sales tax is charged in most states.