Sacramento,CA — A normally cautious spokesman for California grapegrowers gave an uncharacteristically upbeat prognosis about the financial health of vineyards for 2011 at the bustling Unified Wine & Grape Symposium on Wednesday. Nat DiBuduo, the president of Allied Grape Growers, said that demand for winegrapes has increased and that growers responded by planting between 14,000 and 17,000 acres during the past year, after about five years of bulldozing vines to plant other crops like almonds.