Why did you even ask then? If you were already set on waiting or possibly not upgrading? Please tell me that saving money on a glass screen protector didn't make the difference? Cases will be different as well.
As for cost- NONE of these phones are selling for anywhere near what would be reasonable considering what they cost to make, but the curved screen and the fact that it is 4K, plus the hardware improvements to the camera (it now has optical image stabilization as opposed to digital image stabilization)... those 2 things alone i am sure they use to justify the bump in price. Is it overpriced? Sure, but aren't they all?