The single vineyard craze. Monks in Burgundy started it a few hundred years ago. From there it took a while to catch on, but in modern times has exploded in California and spread to Argentina, Australia, Oregon, South Africa and beyond. The concept is simple: sourcing grapes from just one vineyard and naming that vineyard on the label. The result is countless wineries producing maddening-to-find, small-production wines (at high prices) by the bushel load.