Imagine being able to order the coveted 1995 Robert Mondavi Cabernet Sauvignon... just to sample. A veritable cuvée of options that were only available when you were ready to make a hefty bottle-size commitment are now available by the glass, thanks to Davio’s Northern Italian Steakhouse, its incorporation of the Coravin wine preservation system, and, now, the best by-the-bottle pours in town.