(MarketWatch) -- California wine sales in the U.S. grew to a record 211.9 million cases in 2011, up 5.6% in volume over 2010. The estimated retail value of those shipments was $19.9 billion, up 8% from $18.5 billion in 2010, according to industry consultant Gomberg, Fredrikson & Associates. Competition for wine drinkers is heating up. The U.S. Tax and Trade Bureau approved 120,000 new wine labels last year. By varietal, wines showing the fastest growth include Muscat