Blockbuster ( BBI), its woes reflected in the state of the DVD, game and video rental marketplace, could be a poster child for dying industries. "In 2000, Blockbuster was a thriving business and the most dominant player in the $12.2 billion industry. Today, Blockbuster is bankrupt, and the industry is 35.7% smaller than it was a decade ago," van Beeck wrote in his analysis. Demand for the sort of media Blockbuster built its one-time empire on is as strong as ever, he says. What changed is that the company, and many like it, weren't prepared for how the Internet, digital cable, satellite TV, big box stores and mail-delivery services such as Netflix ( NFLX) would change consumer habits. What was once a weekend night at home can now be an everyday occurrence without the need to drive to a specialized, bricks-and-mortar location. The industry's revenue of roughly $7.8 billion last year is down nearly 36% since 2000, with a 20% drop-off projected over the next six years.