Tollbooth on the Katy Trail?

In a recent online story about getting into shape in 2009, one Katy Trail user said, "There's no tollbooth on the Katy Trail, so this was a good place to start." Makes us wonder if perhaps there SHOULD be a tollbooth on the Katy Trail. After all, the Trail is a privately maintained park. Unfortunately, only 10 percent of the users actually contribute to its maintenance.