Demand for New Zealand's crisp Sauvignon Blancs, elegant Pinot Noirs and delicious Chardonnays is booming—and for good reason. Not only do the wines offer high quality, but the vast majority cost $30 or less a bottle. Last year, shipments of New Zealand wines to the United States rose by 22 percent and is now the world's 10th largest exporter by value. What's even more impressive is how quickly New Zealand has made its mark. Wine Spectator's MaryAnn Worobiec reports.