Why you ask?
Because the Google Maps feature is so much more than getting printable driving directions from your computer.
Smart cell phones can download a mobile version of Google Maps which will lead customer right to your front door.
Once your Google Places account is set up it is tied directly into the features of Google Maps. Then, whenever someone is in your neighborhood your jewelry store will appear as a little red pin on the map whenever someone searches for "jewelry."
Better yet, the person could be anywhere in the world planning a trip to your town, yet when they search for "jewelry" they well still see your little red pin on the map.