The watch was never really useful enough. We are plateauing on wearable and mobile device tech atm, and we pretty much need to put all hands on deck to make AR happen.
you're kidding. fitness tracking, music and podcasts during walks/runs, less intrusive notifications, taking calls and receiving messages with GSM module, heart rate monitoring including arrhythmia and other issues.
right now the only thing you can possibly complain about is battery life, but personally i found it to be a routine/habit building exercise to just put the thing charging when i'm showering after morning walk.
It's super-handy, but I don't own a car (and try to rent cars with CarPlay when I do drive), so I only ever use it when walking. And there it's really nice to be able to pull up my watch, double-check the street name - because Siri will have butchered it - and so on, without having to take my phone out of my pocket.
You can turn off turn notifications in the watch settings if its distracting. I find that I never look at the car screen and I miss turns and I have the gps audio muted to not interrupt my podcasts. The watch vibrating on upcoming turns is super useful to me.
I think there's potential for a whole new category in this space for wearable EEG's which really only 1 company is playing in at the moment. There's a million possibilities with the right hardware and software.
The watch was never really useful enough for you, let's not forget that Apple sells a ridiculous amount of the things. More than long-standing traditional watchmakers.