I was excited to find out I could add my car to my AT&T wireless plan for just $10 a month - then I realized, what is the point? Why should we pay $10 to use the same pool of data that our phone is pulling from? It's not like the car has a web browser or email app or streams Netflix - its only purpose is to act as an antenna booster for the phone. I could see why they'd charge you a setup fee, but why should we pay an ongoing fee to use what is essentially just an antenna booster for a smartphone?