As much as I don't want to hear drones buzzing around (would be horrible IMO) what if Walmart starts to shut stores because the cost of doing business is too high and they can't compete with Amazon? What if say the minimum wage rises to $15, cost of gas rises astronomically, too many lawsuits, unions, whatever. Robots don't sue. Remember all the businesses that were destroyed because of Walmart's lower prices. If Amazon can deliver lower prices by drone, grandmas everywhere might demand drone delivery for cheaper hearing aid batteries. If Amazon can take out Walmart, maybe drone delivery is not that far off. I hope it doesn't happen but like I heard one analyst say (regarding drones) on Bloomberg radio: "It's not if, but when."