yes the cost of the gps , thats the trick . the company or person that makes the big cash from this idea , will be theone thatfigures out how to make it affordable to the consumer i think the actual unit is pretty cheap , its the satalite time you need to lease to watch all the billions of bikes , i have an idea on how to do this . just waiting for someone to offer me a cut in the action . i wish bill gates was in to bikes