You can enjoy a crab leg dinner for two at home for about $75, including wine. • 1 to 1 1/2 pounds (16-24 ounces) of crab legs (about $45), including garlic butter • Two side dishes ($10) (recommendations below) • Dessert, homemade or purchased ($5) • Santa Margherita Pinot Grigio or Chateau Marjosse Blanc wine ($14-27)