Tom Maguire, John Berkenfield and Gerard Martinez have been tailgating on opening night at the Santa Fe Opera for about 30 years. In the parking lot of the scenic venue north of the city Friday evening, about two hours before the curtain was set to rise for Madama Butterfly, they were enjoying their first course, a watermelon salad with feta and mint, joined by Thea Witt, Carrie Marsh and Emiliana Sandoval. "I'm a nut about the crystal china," Maguire said.