I checked the stats for my current city and I have to question just how their calculating their housing costs... It's not even close to what's actually on the market at the moment.
EDIT: Also worth noting that it's a ~45-60 minute commute from Maricopa to Boeing in Mesa. I make an equivalent commute every weekday--at interstate speeds for 60% of the route--and don't even leave my city proper. The commute isn't as unrealistic as you might think.
http://livingwage.mit.edu/resources/Living-Wage-User-Guide-a...