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Just in case you aren't aware, you aren't required to activate/use the cellular feature. The SS and Ti models are "cellular-ready" should you ever decide to enable that feature with your cell provider. But you are still free to use it as GPS only. You are paying more (hardware features included), but you're also getting more premium/durable materials.
 
You also get the security of being able to call emergency services anywhere.
I think that's true even with the gps/wifi watches. I think Apple's theory is reasonable even if you and I don't agree with it: if someone's paying the uncharge for SS or and Edition watch, the uncharge for cell isn't a big deal. There may also be production volume issues for Apple - pure guess. In any case I think it's always been that way.
 
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