A dancer performs in a nightclub in central Moscow March 9, 2009. It may seem a typically Russian view of the economic crisis -- selling and paying for sex makes up much of Moscow's notorious nightlife, and some "night butterflies" say they are slashing their prices to compete. But they add a new kind of customer has emerged who wants emotional support, not sex. Picture taken March 9, 2009. To match feature RUSSIA-PROSTITUTION/CRISIS REUTERS/Thomas Peter (RUSSIA SOCIETY)