For most of us, the idea of life inside the golden triad of Park Avenue, Sagaponack, and St. Barths is just as exotic as the mysteries of the Bermuda Triangle. Luckily, Richard Kirshenbaum has a VIP pass to the Upper East Side and is willing to share the wealth-of gossip. His New York Observer column on uptown social life provides a fascinating glimpse behind the gilded curtain into the swanky restaurants and eye-popping vacation destinations where the 1 percent gathers. Isn’t That Rich? features highlights from Kirshenbaum’s monthly column as well as several brand-new essays that exposes the preoccupations of the posh.