It might be hard to believe, but this month marks 20 years since Miles Raymond — Paul Giamatti’s character in the 2003 Academy Award-winning movie “Sideways” — threw a fit about drinking Merlot. We all know what happened next: Merlot sales plummeted (and still haven’t quite recovered), Pinot Noir sales soared and the Santa Ynez Valley became a beloved destination for wine-focused getaways. The allure is understandable — it’s a relatively short travel time from Los Angeles and has a laid-back, approachable feel, a pleasing pastoral landscape and exceptional food and wine. A good bit of “Sideways” was filmed in Buellton, one of the Santa Ynez Valley’s six towns. It sits just off Highway 101, making it easy to bypass as you turn toward its well-branded Danish-themed neighbor, Solvang, to the east. This may be especially true now that Buellton’s famed roadside eatery, Pea Soup Andersen’s, shuttered in January just shy of its 100th birthday. I, too, bypassed Buellton back in May with my two teenage and pre-teen sons in tow. But they had no …