The article I read said that this offer was made to "some" of FedEx' s customers. How many and who are they? How much was Amazon paying for shipping? If these select customers are offered 2nd day air at ground prices and the price is higher than the price Amazon was paying it sounds like a win to me. The whole key to this is "How much was Amazon being charged to ship on FedEx?" I sure don't know and I am pretty sure nobody on this forum (Master's degree or not) knows what they were paying.