I've been using the Apple Watch for a few weeks now, and I would say about half of the benefit of owning it is the fitness features.
Agreed. I do plenty with my Watch, but I find the fitness functions are the biggest value by a substantial margin.
I expect that balance to shift when (1) third-party apps provide meaningful usefulness (so few have, thus far) and (2) Apple Pay and other NFC functions become more ubiquitous in the world around us.