"This is a very affluent metropolitan area, particularly in this down economy," Mr. Frechtling said. "Washington, D.C. is an oasis in a very distressing economic recession."
Washingtonians lead U.S. in vacations taken →
"Affluence generates a lot of that vacation time," Mr. Frechtling said. "But a lot of Washingtonians are transients; they're from other places. Vacation is a great time to renew the family ties and friendly ties wherever you're from."