Public-private partnerships are a valuable tool in making government services better - and we are just scratching the surface in the U.S. in making best use of them. 

Here's a story about how the State of Oklahoma is starting to use the P3 model to improve the recreational uses of the many lakes around the state. While the state's goal is not to make lots of money, I think it's a reasonable expectation that this sort of development will assist in economic activity where recreational facilities are developed, which will likely lead to more state revenue, thus creating a 'virtuous cycle' - and that's the point.