It should be cause for celebration. California produces some of the most finest, long-lived (and expensive) wine in the world. In 1976 - and again in 2006 - Paul Draper's Ridge, Warren Winiarski's Stag's Leap, Chateau Montelena and other California classics were judged, blind, by international experts, to be superior to their French counterparts.
The greatest French wine producers pay homage to California. Christian Moueix, of Bordeaux's legendary Chateau Petrus, reveres Dominus, his Napa estate.