A system for purchasing a product that does not need to be physically present at a point-of-sale includes a point-of-sale device, a product-selection device, a data-analyzing device, an inventory-managing device, and a dispensing machine. The point-of-sale device includes apparatus for scanning or otherwise inputting a first product that is physically present at the point-of-sale. The product-selection device includes apparatus for selecting a second product that does not need to be physically present at the point-of-sale by a characteristic other than by a standardized product identification number corresponding to the second product, controller and memory apparatus for retrieving a standardized product identification number corresponding to the second product, and communication apparatus for sending the standardized product identification number of the selected second product to the point-of-sale device. The data-analyzing device receives completed purchase transaction data from the point-of-sale device and identifies the selected second product from that data. The data-analyzing device thereafter sends instructions to the dispensing machine for dispensing the second product. The inventory-managing device communicates with the product-selection device, data-analyzing device, and dispensing machine to inform customers of product availability, reserve products for customers, and maintain inventory of products.