Texas has gone toll happy

We have 2 toll roads in the Dallas area, and I have to commute using one of them. Not bad, but its going to get bad. There have been plans to make what used to be a highway into a toll road, and now under the threat of taking 10 more years to complete, instead of 3 more years, a project that was once considered a freeway will now be a tollway.

Now, the question is: Once they've paid off building the road, and improving the local roads with the money from the tolls will the state let go of their cash cow? Keep in mind these projects (the 161 project specifically) are being handled by private companies who are interested in one thing, and one thing alone: The bottom line.