It Doesn't Take Many E-Book Sales to Make a Kindle Bestseller

For the past two years, Amazon (AMZN) has been exciting consumers and frustrating book industry types with its puffed-up press releases about the strength of Kindle and e-book sales. The level of self-congratulation appears to have reached a new high with the most recent release, which boldly claimed that the Kindle has become the most gifted item in the company's history, and that on Christmas day, more Kindle books sold than physical copies.