Home foreclosure may become an industry in itself. Today's New York Times features a California company called You Walk Away, which is looking for clients whose mortgages are now worth more than their houses, so they can't refinance to meet rising payments. For less than a thousand dollars, You Walk Away will show them how to deliver their problems back to the bank by foreclosure. Part of the problem is the idea that housing is not just a place to live, but a gold-plated investment whose value just keeps going up. What goes up must come down, leaving tens of thousands of people with increased payments on loans worth more than their houses. Are greedy banks and investors at fault? What about home buyers themselves? And what's the impact on an economy that depends on consumer spending?