And this is a cheap one!! Commercial microwaves were another story!! . . . "in 1947, the first commercial microwave oven hit the market. These primitive units where gigantic and enormously expensive, standing 5 1/2 feet tall, weighing over 750 pounds, and costing about $5000 each." Tags:admicrowaveoven Added: 10th July 2007 Views: 699 Rating: Posted By:Teresa