“People are buying it almost solely because Apple made this.”
Not just because _Apple_ made it, but because some company created a “walled garden” ecosystem good enough that many millions of people have bought into, at significant personal cost, and that ecosystem means anything new added to their collection seamlessly integrates with & complements the other investments. That’s an achievement - and sales pitch - few have pulled off; the Android ecosystem is heading that way with their own “wearables” (https://android.com/wear/) but there’s so much fragmentation no particular “watch” is gaining significant traction (in close parallel, Android phones make almost no profit). Contrast that with the iPhone which, as a single product with few variations, dominates half the smartphone market - and the Watch single-handedly complements that “half the market”.
Insofar as “people are buying it almost solely because Apple made this”, well yeah: half the smartphone market is iPhones, and this complements the iPhone. Nobody else has such a huge market share with such a clear complement to their device.
That's quite an accolade considering that the only Apple product it actually does integrate with is the phone.
Apple is not half the worldwide market
Less than10% first quarter