I know that some of the storekeepers can carry out the fulfillment of a network of its choice such as a coffee by putting in money and pressing a button, chocolate, lottery or specially designed card is inserted into the machine like that. but this means that a place has a profound interest in professed people in the use of various payment systems. A commodities have the speed and confidentiality of its transactions, as it actually manages people, or does not want it to be handled.