. . . "Both of those could apply only to Washington, D.C., as the nation???s capital rose to the very top of MarketWatch???s 2010 annual ranking of the Best Cities for Business, beating out such cities as Omaha, Neb., Boston and Des Moines, Iowa.Washington has made the most out of having the U.S. government, a very large customer for any company, to keep it chugging during the tough times." .