A story I am excerpting from WSJ.
Last year, he might have just dropped the $184.85 Garmin global positioning system into his cart. This time, he took out his Android phone and typed the model number into an app that instantly compared the Best Buy price to those of other retailers. He found that he could get the same item on Amazon.com Inc.'s website for only $106.75, no shipping, no tax.
But immediately, my new subscription to Broadband Mobile (I pay < $9/mth for a 12 months term) is to check up the traffic in order to avoid congestion. It helps that I can see what many cameras on our expressways see too.
I don't shop a lot, so the benefit here is more limited.