> And Amazon doesn't use cheap ebooks to drive sales of their kindles, it's the exact opposite - cheap kindles to drive sales of the ebooks. It's a combination

> And Amazon doesn't use cheap ebooks to drive sales of their kindles, it's the exact opposite - cheap kindles to drive sales of the ebooks. It's a combination of the two. For tech subjects at least, the Kindle pays for itself within 3 or 4 ebook purchases, but of course the math works out that way because the Kindle itself is cheap. I finally bought a Kindle (just got it yesterday), and you know what drove me - a dead trees lover - to buy one? The publishing lead times. In the HN thread re Ruby on Rails Tutorial: Learn Rails by Example, I asked when the print edition would be available, and Michael Hartl said it would take about six months. A six month lead time after the ebook is released! That's a long time in the evolving world of Ruby.