I find it strange that people want to buy the watch first and then find uses for it.
That depends. I bought it because I liked it, simple as that. I was intrigued and curious, and just liked how it looked as a watch. Since then I've found a much greater depth of use than I had expected.
My uses:
- nice looking watch. And the planetary watch face is a stunner and fun to show off, blows people away.
- not having to always reach for the 6+ to check notifications is actually very handy and makes my iPhone use feel a lot less hysterical...I tend to obsess over missing notifications

Also I love being able to leave my phone in another room while having dinner for instance, and discreetly receive notifications.
- peek at Instagram and Flipboard sometimes when I have a minute to kill waiting for the bus or whatever, and have my phone buried in the bag, actually quite enjoyable
- set timers using Siri while cooking and have messy hands, this is awesome
- Passbook/Wallet use is actually very cool, love how it just comes alive when my flight time is approaching
- Siri: "tell me about" whatever, and have the Wiki article pop up is fun and I use it a lot for example when out having a beer and the conversation leads to something I want to look up on the spot.
...and I expect much of this will get a lot better with watchOS 2. One thing I like is to enter my whole groceries shopping list in Todoist and then being able to pull up the list on the watch and tick off items while shopping - but this is currently too hit & miss given the sluggish OS, I expect this to improve markedly with the upgrade and become much more useful.
I don't read the OP as he/she intends to only check the time & notifications on it, but rather is asking what it can do.
So OP: if the money isn't a huge deal and you're intrigued/just like the Watch, I'd say have some fun and go for it! Or at least go to an Apple store if you can and try it on, you might fall in love on the spot.