you can buy a tom tom with speed camera updates and time of life map updates... for under £200 you can take it out of the car just by unclicking, it, and use it anywhere, ie, after you park the car and need directions to walk through a city centre you have never been to before, with all the places of interest, and just the place you want to walk to... highlighted and directed.. or you can plug it into your laptop, and use it there too... why have a machine that can only be used in your car?, would you buy a phone that cost £427 and could only be used in your car... ha.. money for nothing... and the cheques are free..