Amzn doesn't produce any products they sell. Then, why they collect their stock in their storage space. It is waste of money. It's no wonder why its PER is around 3,500 level. They can just arrange the traffic route. With potential buyer & producer information, it could easily ( ? ) calculate the delivery cost. So, they can just save those costs involved in keeping those stock in their space. Can't they just manage the information ? It was always weird any competitor just showed up and do that to defeat this inefficient entity ? Why is that so dfficult ? -.-?