I've had a Nike sensor for quite some time and for me it is an excellent motivator. My workouts download online and I can see how I'm doing. Since getting my sensor (I'm on #2) I've walked 1001 miles!! This is purposeful walking or jogging. I don't have my shoes with sensor every time I walk.
I was pretty impressed with myself until I saw that this is started in 2008, so almost 3 1/2 years worth!!
Did you know that from the middle of the state of Oregon, where I live, I could walk to Tijuana, Mexico in 1000 miles? Wow! The miles do add up!!