<正>There are different types of collectors: those who buy for investments, those who buy for aesthetic pleasure and those who have a real interest. AN opening night at the Marella is usually a big spread. So it was recently when the Beijing gallery opened a show of young Chinese artists which mixed irreverent social commentary with ceramic breasts and other human forms. Marella usually makes the biggest splash among the dozen or so openings every Saturday at Beijing's redbrick 798 art colony in the city's northerly Dashanzi district. Onlookers gawked as artists, media and collectors spilled onto the foopath with paper cups of Italian wine and plates of hors d'oeuvres at the recent opening party for Fancy Dream, a collection of works by young Chinese artists shown by the Marella, an Italian-owned art firm with galleries in Milan and Beijing.