I admit it is very expensive to buy, but follows can desire nothing more. The cards are guaranteed for life and when you see the price of the cards, GPS is profitable. Add to this 3-year services "Live". It will recalculate a quicker route if plugs or slowdowns on the originally planned route. When I went to Berlin, I was super happy to win more time because he offered to go elsewhere. GPS is customizable and you just take the time to explore all possibilities.