I see older neighborhoods in the Keller, Southlake, Grapevine area (midway between Dallas and Ft Worth) sprouting For Sale signs, and some look suspiciously empty and unkempt. At the same time, luxury subdivisions are still building new houses at approximately the same rate. Don't know how many new McMansions are actually being sold, though.

I have noticed morning traffic near DFW/Hwy121/114 is significantly lighter than when I first moved to this area two years ago. Higher prices or fewer jobs to commute to?

Could be fewer construction and real estate related jobs resulting in less traffic.

Check out the article just below that davebygolly posted. Some amazing case histories. Kind of spooky how fast some of these subdivisions have crashed.