I don't see how the numbers could show that this scenario is fair. - Developer sets a minimum list price of $0.99 (fair) - Amazon has an 80% off sale (fair)

I don't see how the numbers could show that this scenario is fair. - Developer sets a minimum list price of $0.99 (fair) - Amazon has an 80% off sale (fair) - Developer later has an 80% sale on Android Market (fair) - Amazon can now sell the app for 96% off, because the sale on Android Market resets the minimum list price (unfair) The developer is punished for having a sale on a competing market by now allowing Amazon to sell the app for $0.04, forever.