The market may collapse, but the property is still there. Nothing is destroyed or ruined, except for people who are speculating, gambling, in the market and are stuck with property they don't need and loans they can't repay. I cannot muster up any sympathy for them. People who buy property because they need it still have the property they need. And if they need to buy new property the price level will be the same as for the property they sell regardless if the price is higher or lower than before. People who live above their means (like the Greeks) get no sympathy from me.