Could Amazon really be selling 10% of books as Kindle Edition Books?
Case 1: Most Probable Scenario. Amazon sold 500K Kindles through end 2008 and now has a total of 700K Kindles and Kindle 2s out on the market. You can check my Kindle 2 Sales Estimates post for predictions for 2009. Assumptions: • Amazon.com gets 55 million unique visitors a month (Qunatcast: 43 million, Compete: 65 million). • Before Kindle, let’s assume 30% bought books from Amazon, at a rate of x per month. We’ll assume x is 1 for convenience sake. So 16.5 million people buying a book a month. • People who buy Kindles tend to buy more books than non Kindle owners – even BEFORE owning a Kindle. This sounds right. • Mr. Bezos is right about Kindle owners buying 2.7 times more books. • The ‘Kindles in same family, same owner’ factor balances out because Kindle owners bought more books (even before owning a kindle) than non-owners. • For simplicity let’s say that Kindle owners tend to not buy any more physical books from Amazon (which is probably very close to the truth). So taking all