While I believe they saw these numbers, specifically that lowering the price from $15 to $10 lead to a 74% increase in purchases, I don't believe that this is a good general rule of thumb. Here's the problem: there are only so many potential ebook readers out in the world, and they only have so much time. This means there will be market saturation at some point, or at least market movement. This elasticity is there,…
> Also, why would Amazon care so much about how others market their content, to the point of trying to interfere? They make $3 on every sale, so obviously it is in their interest to set the price to maximize revenue. Your whole bit about "everyone doing it" and "race to the bottom" is an instance of the zero-sum fallacy.
All of the evidence points to the fact that people have more than sufficient entertainment options and have set their budgets at a fixed point.
It wasn't piracy that killed music. It was the fact that the prime purchasers of music had a fixed entertainment budget and switched to buying video games aka. zero-sum market.