In DFW they are all over the place. Not sure where you live. So I disagree completely. Where I do agree- is that I never see them being used. And the reason you haven't ever seen them used? Apple hasn't put one in the iPhone. The day they do that, the day you'll see it used all the time. Then we'll hear the typical android call of "We could do that 4 years ago". And our retort will be "ya- but no one did or cared". Both of which will be true.