And you have to define your terms here. What do you mean by "living"? If you mean, "able to feed themselves and live under a roof", that's not living, that's subsisting. I'm talking about being more than just a serf and actually making forward progress in life. Sure, the bartender at the insanely overpriced place a few blocks from us probably only makes $60k, but he also probably lives with a roommate in a tiny apartment, still owes money on a 7 year old car, has no assets, has no savings, has no health insurance, has no chance of retiring at ANY age.
At this point, I don't think there is anything within our current distance to her job (20 minutes) that A) we would be eligible for, and B) would be cheaper. I telecommute. If we both had to drive an hour to work, then we'd have to buy a second car and the increased transportation costs would certainly eclipse any savings in housing.
Mind you, an hour away in DC is 15 miles on a good day. There are people who work here for half of what we make, and they commute 2 hours to work every morning. I hope you're not suggesting that that is a livable scenario. "Well, it is for them." Maybe for them (I'd argue they are sending themselves to an early grave, but I digress), but not for society as a whole.
At that point, if we're living 2 hours away, we might as well be working for less where we lived. Thus my point: we can't live and work here for much less than we're already making.