Did you hear the one about the rich dude who walked into Macy's? Neither did I. Affluent shoppers are turning away from general merchandise retailers in favor of more specialized and specialty shopping experiences, like the ones offered by specialty retailers,  according to Unity Marketing's latest ACTS Shopper Track study. The average income of those surveyed was $258,700.    While affluents spent .4% less overall shopping in general merchandise stores, they picked up the pace of ...