I just got back from the Apple Store. It was pretty crowded with holiday shoppers....but, not one customer standing at the Apple Watch Display/Table. For most people, I think it is just too expensive for what it does. Basically, it does very little unless you have an iPhone in your pocket. So, I think a lot of people just buy a cheaper fitness tracker and then use their phone for everything else.
I bought a Pebble for $99 earlier this year. (They were on sale for $69 during black Friday). It does the basic stuff: Notifications, Steps, Date/Time, Stopwatch, Calendar, Weather, Stock Quotes, Sports Scores....nothing fancy....5-7 day battery life.
If I need to do anything more complicated, I pull my iPhone out of my pocket.....no big deal. I can't imagine paying $400 for a watch that needs to be charged everyday. But, that's just me.