Due to the economy, a lot of local governments have had to raise prices or fees regarding certain hobbies and recreational activities. For instance, in Iowa there was talk of raising the price of hunting and fishing license fees 34% until public outcry caused the state to drop the issue. The same thing happened in Idaho.
Now, in San Francisco there isn’t much hunting or fishing going on, so the local government there has to think of other areas to make some extra money. Which is why the Parks Department decided to start charging badminton players at the city’s public gyms $4 to rent a court for 45 minutes. Of course, the fact that they weren’t charging any of the basketball or volleyball players using the same court kind of ticked off the badminton players (are they called shuttlecockers?), and they didn’t just stand there and take it.