I've got no desire to buy the watch right now. Notifications on my wrist mean little to me. Having Apple Pay that much easier to use is nice, but not worth the cost at the moment. Until these wearables become a functional part of a working home and work place automation system, I fail to see how they can really catch on to the masses.
Regarding the new MacBook, give it a generation or two. Just like the Air, it didn't hit the the ground running.