If you buy pricier wines, then go to Napa. If you mainly drink Cabernet Sauvignon, buttery Chardonnay, and Merlot, then go to Napa. If you buy more reasonably priced wines, then go to Sonoma. If you mainly drink Zinfandels, Pinot Noirs, Sparkling Wines, Red Blends, and Unoaked zesty Chardonnays, then go to Sonoma.