THE NEW YORK TIMES BESTSELLER RICH-I-STAN n. 1. a new country located in the heart of America, populated entirely by millionaires, most of whom acquired their wealth during the new Gilded Age of the past twenty years. 2. a country with a population larger than Belgium and Denmark; typical citizens include “spud king” J. R. Simplot; hair stylist Sydell Miller, the new star of Palm Beach; and assorted oddball entrepreneurs. 3. A country that with a little luck and pluck, you, too, could be a citizen of. The rich have always been different from you and me, but Robert Frank’s revealing and funny journey through “Richistan” entertainingly shows that they are truly another breed.