Economics in Texas are much different than in Florida. It's interesting because Texans really do love the ex-urban lifestyle, but they are realistic about it and support surrounding infrastructure pretty well.
But I agree with fsujax, they have no qualms in paying taxes to support general transit initiatives.
I have ridden both DART & TRE in and out of Dallas. I like TRE better because its heavy rail and you have more room in your seat. DART was very good, but the Plano Line was extremely crowded by the time it reached downtown.
Most cities look to ramp up densities before they will support transit, in this case the reverse is true, they are building it with the idea of planning the densities around it. It's forward thinking and strategic.
If only we could get off the visioning and planning toilet seat.