"GPS Leads to Lower Gas Prices"

STEVE INSKEEP, host:

We might be delusional about our bad investments, but it is hard to ignore how much money we're pouring into our gas tanks. So our last word in business is GPS. A company that makes those navigation devices says its newest technology uses real-time gas prices to help you find the cheapest gas station on the map, so you can go there and shave dollars off your next gas bill and save money - after you've spent $500 for the device.