With all of Apple whizdoodling why can't they fit the iPhone 6/6s/7 Plus camera in the 6/6s/7?

[Sam3]

I agree with pRICE, there is no reason that they couldn't expand the lineup by two, have a 7 and 7+ differentiated only by screen size, and a 7 and 7+ Premium edition with higher end features like the dual camera.

Or at least a 7 Premium with the higher-end features like the camera.