You have to pay for the models you photograph. YOu have to pay the photographers, any costs for hte site name, and other maintainance costs. You do not pay for paper, postage, sales tax. One person went from a dancer to a CEO and is making over 5 million dollars using the internet for pornography. The porn business has defintely latched onto the e-business concept.
Music is worldwide and in many languages.
Music has been around since man has. The industry not only consists of the musicians but as well as producers,writers,managers, and directors. There are many different record companies. The music industry gets its revenue though record sales, concerts, and promotions. It is very costly to make a record and to make thousands of copies for distribution in stores.