Amazon has had grocery stores and even produce stands I Seattle for a while. They may have had them other places as well. And in big cities (or so I hear because I don't live in one of those places) Amazon which do same day delivery to your door of just about anything they sell. In Seattle and NYC Amazon has restaurant delivery as well (maybe Chicago and LA?).
Whole Foods just started a Peapod-like delivery service here (and if they are doing it here they must be doing it other places).
Walmart still has a better selection and better pricing than either Amazon or WF.
Interesting times. Interesting times.