In a disclosed embodiment of the invention, a customer of a vending machine is provided with an offer to establish a membership at a vending machine. After receiving an acceptance of the offer, a membership identifier is determined. The membership identifier is stored in association with the term of the membership.After the step of storing, the membership identifier is received. The term of the membership is determined. A selection of a product that the customer intends to purchase is received form the customer, and a transaction is processed at the vending machine in accordance with the term and the selection.