Hi! Hope you will be very happy with your kindle, i certainly am with mine
actually, books can be way more expensive outside the US! i live in France and amazon wanted to charge me US$13,60 for the Kindle Edition of "Negotiation" of the Harvard Business Essentials Series instead of US$9,56 in the US. that's 4$ more!! Too much for what it is, considering the paperback costs 13,50 too.
I simply added a US address to my account and temporarily changed the region as well to USA et voila, i was able to buy the book for 9,56 and got it on my kindle DX. now that on the other hand is REALLY cheap in €