If Apple knew that the iPhone 5′s anodized aluminium was easily scuffed, why didn’t it use stainless steel instead? The obvious answer is weight; the iPhone 5 is some 20 grams lighter than the iPhone 4S, most of which probably stems from the aluminium chassis. It could also be an aesthetic design decision: Maybe Jony Ive wanted an anodized finish, and so aluminium had to be used.
// Excerpt from Extreme Tech.
That’s somehow the big question, though it won’t stop all fanboys out there to get the iPhone 5, but i figure most of them won’t accept any scuffing or chipping on their precious iPhone. Will you?