Isn't That Rich?

Celebrated ad man Richard Kirshenbaum, the original New York observer, reveals the fashions, foibles, and outrageous extravagances of the private-jet setPaid friends. Pot dealers draped in Dolce. Divorce settlements that include the Birkins at their current retail price. Air kisses, landing strips, and lounge-chair bribery.For most of us, the idea of life inside the golden triad of Park Avenue, Sa...