Real estate is a sport in Palm Beach. And billionaires are still making moves, despite an overall slowdown in home buying across the country. The luxury market in the South Florida town has been propelled by "inter-island moves" — wealthy homebuyers hopping from one mansion to the next. Deconstruct chats with TRD senior reporter Katherine Kallergis about why Palm Beach is continuing to see record deals trade and the most expensive listing currently on the market in the area.