[QUOTE=exRunner;9947545]For me it is convenience (or laziness, take our pick). Turn it on, snap it in, push the button, and forget it. Get home, unsnap it, plug it in, look at everything in pretty colors and graphs, then clear it and put it back on the bike for next time.

+1. Love my 305. Click it between 4 bikes. You don't even a have to be data geek to love checking out your stats