Aesthetic was only one of the reasons why I liked Apple products. When it comes to the iPhone line, I am rather indifferent to type of casing. I don't know the exact figures of those who use protective cover for their iPhones. However, I've seen more with some sort of covers than without. Which leads me to wonder why people care so much about the hidden beauty.
Samsung's newest S4 has an accessory that replaces the battery cover instead of adding another layer. I thought this is a step in the right decision. Instead of buying protective layers to cover and hide the pretty finish(which comes with a price), I would rather like a simple shell which can be replaced with a tougher third-party case.
I don't think Apple will do this. However, plastic or metal, I will most likely be covering it up with some sort of additional protection. If it drives the price down, I'm happy.