What we find is that when people buy a Kindle they read four times as much as they did before they bought the Kindle. But they don’t stop buying paper books.
- Jeff Bezos via the Atlantic
The 4x is an amazing stat. It’s probably in line with how much reading I do on my iPhone, iPad, and Kindle, though spread across Instapaper, Pocket, Kindle, Flipboard and iBooks. I also continue to buy physical books, just more graphically rich ones.