Similarly, it's hard to mistake an aged Burgundy for a Cote Rotie, or a Sauvignon Blanc for a Reisling.
Wine stores without Enomatic machines or equivalent are a mostly waste of time, IMO, unless you already know the maker's style and it's what you're looking for; or the owner has excellent taste. Dispensers give you the ability to taste a dozen or two wines with ease in a single evening.