IMO, it is pointless unless you can drive your car on it.
As others have mentioned, public transportation in D/FW and Houston is not that great.
Unless you have someone there at the other end, you then have to rent a car, which just adds to the expense.
I drive to FW a few times a year, and the drive from Katy to FW is just over 4 hours depending on traffic. The thought of having to drive to downtown Houston (or wherever the station is), pay for parking (and worry about it while I was gone) then get on the train and go to FW and then get a ride or rent a car just make no sense.
I guess I could take a bus downtown from the park and ride by my house, but still, that is 15 minutes to drive to that and another 35 downtown. I would be in Navasota by that time.
High speed trains have been thrown around in Texas for 20+ years. There was a proposed completly elevated loop, Houston, San Antonio, Austin and D/FW back to Houston. They even planned for 2+ trains, running in opposite directions (yes, they had a places to pass each other) to reduce times.
Edited by blupupher - 5/14/12 at 1:26pm