The appeal is that although it's clearly a watch, and one where you can change it's face at the swipe of a finger, or a strap at the click of button, so is almost (not quite unlimitedly) customisable, it also does so much more. I initially bought one as a watch that happened to connect to my iPhone, and soon realised it was telling me how unfit I was. It was showing how few steps I was doing, and how little exercise I had, and at that point I was just shy of 20 stone. (5'10) As a tool it helped me motivate myself into action - and now a couple of years down the line I'm 12 and a half stone, much more active, and still have the same watch (series 2). So I think because it can be so many different things to so many different people, it succeeds where traditional watches fall short. I do like quality watches, and still own a nice Rado, but that hasn't been on my wrist since I got the Apple.