Who says you're going to be shopping there? It'll be just like in the Soviet Union where you wait in line after you grab a ticket at the machine up front, and then you hand your groceries list to the person at the counter and then that person hands the list to someone working in the stock room in the back, and then they go pick the order while you wait. Then they come back with all of the wrong shit, some of your stuff's been picked through, and then you have to figure out how to live on five or six cans of sardines and some crackers for the rest of the month after you paid all of your paycheck and waited in line