Why game entertainment?

I'm doing some prep for my Algonquin College course, starting on Wednesday morning. Here's an article that we'll look at in class. A good read for a general introduction to game entertainment from a business/marketing perspective.

Sports Business Journal - Fun and Games
Between promotions, skits, traveling troupes, video highlights, contests and ear-rattling sound systems blaring everything from hip-hop to country, anyone who attends a sporting event knows the emphasis on entertainment has never been greater.