Vending machine

One embodiment of the vending machine of the present disclosure provides a housing defining a product holding area, a frame positioned in the product holding area, a plurality first product holders removably attached to the frame and configured to hold a first type of product package, a plurality different second product holders configured to hold a second different product package, a plurality of RFID sensors, each RFID sensor attached to a different one of the product holders, a door attached to the housing, a first electronic combination display device and input device attached to the door, a second electronic display device attached to the door and configured in one mode to display advertising or other content, a physical product display area in the door, a signage display area in the door, a payment receiver in the door, a product retrieval area in the door, a lock configured to lock the door to the housing, and a computer control system including at least one processor configured to control various functions of the vending machine.