Jump on it.
You can sell it back for more most likely if you don't like it.
That being said, iOS homer here and this phone is absolutely fantastic in so many ways. The design is awe inspiring and fantastic to use every single day in your hands. The OS is much much better than ever before and super clean.
I gush over this damn thing and I hate that I do...its a phone!! But its a fantastic experience and bravo to Samsung to pull this off.
Sadly I don't have the money at this time. Otherwise I would just buy it to resell it in all honesty!
If it is available at the end of the week I'd buy it in a hesrtbeat