I mean the people paying $150,000 for a lot in Marfa (looking at listing on Zillow) are probably not locals from those $39k income households. Perversely, the way property taxes in Texas work, this likely means that anyone under 65 is watching the property taxes climb faster than their income, increasing pressure to sell and move to a cheaper property.
It's a real town, but the service folks are largely priced out at this point (although I'd expect this real estate bubble might not last as there might not be that many people willing to buy at Austin prices in Marfa).