Just found Amazon and Google offering a cheap price on a new book of historical essays (Inequality in Early America). Don't know why, whether it's a result of competition or not, but I like it.
On a personal note, I got a Kindle for Christmas a couple years ago. I like it. I've been able to restrain myself from buying lots of pricey books ($9.99 and up) but not the cheapies--both the free and the 1 and 2 dollar specials from Amazon. All in all it's increased my book purchases.