The problem with smart watches today is still that there are no successful ones that are independent of a smart phone.
The day they have their own sim card may change things but there is nothing on the market yet.
Small screen real estate renders any sort of GPS issues useless, and really other than basic notifications, the screen is way too small to do anything useful on anyways.
Since its still in it's infancy there will be tonnes of next year upgrades and the price will be prohibitive.
Something else to consider is craftsmanship. Big watch companies, ie Timex, Bulova, Whittnauer etc make quality that stand the test of time. There is no certainty that the new smart watches will even last a year without software issues etc.
I haven't used a smartwatch before Gear S, but it just blows my mind how good it is. Gear S invalidates all your points. Until you get one, you won't understand.