CLARKONOMICS: Think the economic news in the housing sector is abysmal? There just might be a money-making opportunity in it for you. By now you've probably heard that the average price of a house is down 11.5% over last year. Of course, some areas like Charlotte, N.C., actually saw an increase! But the majority of places are seeing values on the wane. Miami and Las Vegas are among the hardest-hit areas. Then there's the news about foreclosures. The rate that properties are being foreclosed upon is not keeping pace with the rate that buyers are snatching them up. There's more supply and less demand. So there may be opportunity here for investors. Banks are over-run with REO properties and the Dare To Be Great believers who got burned are out on the sidelines. The worst-case scenario is that you might buy now and prices could drop even more. But who cares if you're in it for the long haul? Remember Clark's rule of thumb: Buy 20% below fair market value for homes and 30% below fair market value for condos. Just be wary of buying investment property in areas like Michigan and parts of Ohio where economic growth is not happening because of declining population, decreasing job availability, high taxes or strong unions.