I'm not sure if Bezos and company know what they're getting themselves into with the US grocery business. It's a cut throat business which has not just some big players but several small to medium sized grocery chains (some as subsidiaries and some as stand-alone companies). And I can tell you as someone who's work in grocery the profit margins are thin outside of the US holidays. Frankly, if Bezos thinks this is going to lead to adding actual profitability to the delivery of their other products I'm not sure I see that possibility materializing under the guise of grocery stores and grocery delivery. I hope they have plans to retreat from that business when (not really if) Kroger and Walmart hammer them on the price. Otherwise, I can see them learning a painful lesson in the near future.