This is why I'm still wearing mine after getting it in June. It's pretty handy for things like this. That and as a result my battery life on my phone is up significantly. it's about ease of access to my company email, texts/messages, and all that. It's to augment what you have not replace it.
It's more about the ease of getting those notifications.
When I'm driving, I just have to rotate my wrist to see a message...also don't have to worry about phantom phone vibrations.
If I'm working in the garage I can set my phone in a safe place, but still get messages.
If I'm charging the phone, the watch will pick up messages from just about anywhere in the house (which surprised me).
I can change songs while in the shower
I can change songs while mowing the yard without having to get out my phone.
If I get a text during a meeting, I can very discretely look at my watch rather then pull out my cell phone.
It's just lots of little stuff like that.
I'm not looking for Maps or games or the Internet...I'm not even looking for Dick Tracey calls. But just having some amount of utility is handy.