] Competition among $1.99 bottles of wine is getting so ] fierce so fast that officials of the California State ] Fair may have to add a new class to this summer's wine ] competition: Best of the Cheapest.  ]  ] First on the market last year was the Charles Shaw wines ] -- "Two Buck Chuck" -- made by Bronco Wine Co. of Ceres ] and sold only at the Trader Joe's chain of grocery ] stores.  ]  ] Then a few weeks ago the Beverages & More group of liquor ] stores introduced its own $1.99 wines under the Pacific ] Peak label, made by Golden State Vintners of Napa.  ]  ] Now the Raley's, Bel Air and Nob Hill family of grocery ] stores is leaping into the arena with three $1.99 ] varietals marketed under the CA Arbor label, made by ] Black Oak Winery of Healdsburg.  I'm in Sonoma County for a couple of weeks and plan to visit Black Oak Winery in Healdsburg to get the dirt on the $2 wine trend sweeping across California.  |