How does advertisemen treat convenience as a necessity?

While advertising brings the economies of mass selling to the manufacturer, it produces benefits for the consumer as well. Some of those economies are passed along to the purchaser so that the cost of a product sold primarily through advertising is usually far less than one sold through personal salespeople. Advertising brings people immediate news about products that have just come on the market. Finally, advertising pays for the programs on commercial television and radio and for about two thirds of the cost of publishing magazines and newspapers.