The fourth Moscow World Fine Art Fair opens this week. “Only 20 galleries attended the first fair in June 2004, when it was not so common for a Russian to pay more than $1 million for art.” This year 80 art galleries will show works valued about 1 billion euros ($1.3 billion) of work.”That’s close to the $1.5 billion estimate of art shown at the world’s biggest art fair in Maastricht in March.”