I prefer to not do the math but I can see why others do. Unfortunately we live in an area where it would be VERY dangerous to ride the ebikes to the grocery store, bank or other services. It's sad because those locations are only about 4 mi. away. The state road that we have to drive to get there is quite busy with a 55mph speed limit. There is a shoulder but it's just flat out frightening to ride it. I've tried and won't do it again so for us, the ebikes are just for recreation. Since they are only for recreation, I see no benefit of figuring out cost per mile and obviously we aren't saving anything by not using the cars. Actually we are using the car MORE to transport the ebikes to good bike paths. Hopefully these ebikes really catch on and we get more and more bike paths in our area but I'm not holding my breath for a bike lane alongside M-32