I know it is easy to hate on the price of these things, but convenience comes at a price. You can either leave this mount in your car, and only need to worry about the iPhone - which you would have on you anyway - or you can worry about the iPhone and stand-alone GPS. Most people pay to condense things.
Don't believe me? Ask yourself why you pay for an iPhone when your old cell phone + laptop did the same thing.
Don't believe me? Ask yourself why you pay for an iPhone when your old cell phone + laptop did the same thing.