You also start running into usability issues. There’s only so thin a phone can be before it’s less of a phone, and more of a blade that’ll bend if you sneeze at it wrong.

Apple’s sales fall and people don’t buy new phones because “it looks just like last year’s phone.”

I care. This thing’s already thick and heavy enough, and I don’t particularly care about popping the back off my phone to replace a battery. It’s like…once every two years that I have to replace it.