Actually, I'm probably in a very small minority, but if the Apple watch pairs with an iPad (which Apple hasn't said whether or not it will, those there shouldn't be a technical reason why it won't), and the notification features of the watch work well enough, I'd be able to ditch the iPhone and just use LTE iPad + Apple watch. This is because I hardly ever use the iPhone as a phone. I'd probably want GPS on the watch before I ditch the phone, but I can see this happening in the future.