Founder Joel Peterson with four Ravenswood zinfandels (from left): 2007 Vintners Blend, 2006 Lodi Old Vine, 2006 Napa Valley Old Vine, 2006 Sonoma County Old Vine. These were the more affordable wines, which we tasted oh-so briefly. He produced 84,000 cases of the Lodi, at $12 a bottle. There's 22,000 cases of the Napa, $18 a bottle; and 51,000 cases of the Sonoma, $15 a bottle.