It's yet another bit of planned obsolescence
A person can only take so much planned obsolescence, and it’s getting a little bit ridiculous. Computer? Fine, because it can be a long product cycle if you get the right computer. A phone? Okay, you use it everyday and they’re not ghoulishly expensive if you have an upgrade. Tablet? Cheap, simple, and poor at multitasking, so they shouldn’t need as much power and should last a while if you’re careful. Let's not even go over digital cameras, speakers, and televisions.
But a watch? Apple has captured—I put it that way on purpose—my attention from pocket to coffee table to desk, and I would like to keep my wrist uncontaminated by product cycles. When your wrist is a revolving door, how can you possibly expect to get some elegant patina on your watch?