In fact, they suggest quite distinct target markets. For many people sports are very social gatherings. Those who simply love the sport will watch anyone compete or practice. Surfers, for example, enjoy watching anyone surf. It's the motion and the environment that stimulates their emotions.
Some people can only identify with a sports contest if there is a star player involved.
Michael Jordan is an example of a player who drew enormous crowds when he was playing. People did not care what team he was on. The final two categories include cost and atmosphere. Cost includes anything that causes people difficulty in attending. The interesting one is arena location and it was commented on quite frequently.