Polo. Not just a sunday sport for the uber riche? My sister, Nancy, is on the Michigan State polo club. Over the Memorial day weekend, she spent about 10 hours working out her benefactor's horses. Her team benefits from the charity of some wealthy alumni. Apparentlty, that kind of generosity is engrained in the sport. Professionals are paid by "patrones" who pay for the right to play with the experts during matches. They usually stick around the back and flag down stray hits, though. Can you imagine the owner of a professional baseball team standing out in deep right field? A new meaning for pay to play.