Imagine...if you could put a whole entire clock...on your wrist. Almost everybody has a wrist!
But you're right, I will likely get an iWatch. It will go in my QA toybox with my macbooks and ipads and iphones.
Do you remember computers before the Mac? Notebooks before the Macbook? Music players before the iPod? Phones before the iPhone? Tablets before the iPad? And in a month you'll think: watches before the Apple Watch?
Their strength lies in taking existing technologies, rebuilding them with a strong user focus, and then marketing the hell out of them. So much so that many people apparently forget what came before.
Don't get me wrong; those are all very polished products, and they took a lot of technical smarts. They were much more usable to a mainstream consumer audience. But the non-Apple versions of those products were generally fine for non-consumer audiences. And Apple's marketing is masterful; I've never seen a tech company so good at generating hype.
My phone before the iPhone was horrible, though. Partly that was my fault for getting a Razr. The user interface somehow managed it so that my thumb was always in exactly the wrong spot for what I needed to push right now. It was a joyous day when I found someone to give that thing away to. (On the good side, it woke up two years after I stopped using it, plugging it in, etc. to give me an alarm I had set. Now that is a reliability!)
Yes, I remember the iPod nano