Part of what's happening, Ozoned, is that people forced out of their single family suburban dwelling are now renting investor owned townhomes. It's not like they're deadbeats, just more like they got caught when the market and valuations collapsed, and their ARM reset or recast. Add unemployment to the picture, as well. Many could afford to buy the townhome, except that their credit is shot from the default on their previous residence...
As I offered earlier, if there'll be any shortage, it'll be at the more affordable end of housing.
It's part and parcel of the Hi-Lo split that's tearing America apart, as well.
The housing market traditionally depends on homeowners being able to trade up, as well, use their equity to do so while maintaining reasonable payments. That can't happen for homeloaners who are underwater, which we'll see even more of in coming years, because housing prices are still way high in many areas, destined to fall even further... jobless recoveries being what they are...
Some of my neighbors are essentially in lockdown with negative equity. They need or want a larger home because of growing families, but they can't break even on their current dwelling for that to happen, and they certainly don't have the cash to cover the difference, tens of thousands or more... Some saved for nearly a decade to have the downpayment a few years ago- now that's wiped out, and a lot more...