"The 2014 iPhone 6 was “the poster child” of this transformation, according to a person involved in the product’s development. While the device had complex internal components and a larger screen, it dropped the diamond-polished edges and the precisely cut glass parts of the back of the iPhone 5 and 5s, which had been difficult to produce." well, that explains why the iPhone went from such a unique design to generic…
I'm still using a 6 as my daily phone, which means my phone is closer in generation to the original iPhone that it is to the latest one. I wish the (equally expensive) android phones I use at work had anywhere near that longevity.