I can go less than 10 miles from home and be out of cell range. A majority of the good riding around here is out of cell range. I think people don't recognize how often they are out of cell range when they ride a century, for example. Or you might be in cell range, but only be able to call 911. That's why I have a spot. If all I did was ride 20 miles on the flats near my house, I wouldn't really need it.