I get the logic on GMaps and Waze however there are still dead areas in the country for cell service where you will lose GPS. I realize that on some phones you can download the route prior to making the trip but that is for predetermined trips. Another point is that not everyone has opted for the unlimited plan so if you go over your monthly plan it racks up pretty fast. The update is pretty expensive through the GM site, around $160 but I decided to get it for our east coast and west coast trips.