> Austin is the capital of Texas and the 11th largest city in the United States, and the 3rd largest state capital. The population of Austin is estimated at 964,254, which is an increase of more than 3% over the last census in 2010. [1]
Midwest cities are not viable Austin replacements. One of the many reasons for it's success is the University of Texas. It's a research university and one of the largest in the world. Add to that the fact that Austin has a pretty rich culture, temperate climate, and plenty to do; and now you have a place that people want to relocate to.
[1]: http://worldpopulationreview.com/us-cities/austin-population...