I think people need to be realistic about their usage and expectations. Apple has, arguably, the best CPU in the game. Big things like consistency in taking photos, is an example of where they excel. Press the shutter button, it takes a photo, same time, every time. Samsung is a bit less consistent. Most think this is due to processor speed.
So, I hope for at least 5 years from a phone. That's where I sit. I have never broken a phone. Never cracked the glass (knock on wood).
At 6 years and still finding my phone to be plenty responsive to all my main apps, I'm sold that I will buy Apple again.