You left out all of the Apple Defense Corps counterpoint...
"I can't wait for an Apple Watch."
"Just released record revenues & profits say you're wrong" (even though those have nothing to do with the watch)
"I'll be first in line" (to evolve into) "shut up and take my money"
...and then 100 odd or rare use cases where we conjure up some situation where it would be somewhat-to-tangibly easier to peek at a wristwatch screen rather than pull the iPhone out of our pockets (that must be in close proximity to the watch). I saw one the other day about a guy being "all bundled up for a big winter storm" so he was rationalizing the utility of being able to look at the watch so it could help him make the decision on if he needs to dig the phone out of the inner layers of clothing.

Might as well be: "if I was in space and the iPhone was inside the space suit but I had managed to strap the watch around the outside, it could be a LIFE SAVER if I needed to get a NASA notification right then (and all other communication systems of the space suit had failed)." At least in one like that we can spin how it can save a life instead of getting "what R U doin?" messages to us a few seconds faster than a vibrating iPhone->read the text process.
The "convenience" argument is hilarious as "we" were generally quick and passionate about pounding a concept like Google Glass though something like that could bring notifications & todo lists to our "can't dig out my iPhone" or "can't afford the valuable seconds lost to digging out my iPhone vs. checking a watch face" scenarios without having to even move our arms or head at all.
Personally, I'm still looking for something beyond "added convenience" and "time savings" vs. just using the bigger-screen, more functional device already on hand (and probably in your hand 100 times a day). These weird use cases "we" are offering in trying to rationalize it show the lengths even we (a very pro-Apple crowd in general) are having to stretch to try to make it make sense. If Google Glass had been Apple Glass, I wonder it we would be spinning: "suppose I was armless" or "suppose my arms were tied"... "but I needed to get my notifications or todos anyway." Now step that trying-to-rationalize-it challenge out to the much less "Apple is God" masses. Why are those masses going to pay at least $350 for it? (because they- not us- make brand new Apple products a "next big thing" hit... or miss).