i prefer the look of aluminium but i will happily take the durability of stainless steel. i don't care if it gets scratched. i don't care how my iphone looks. yes i'll take care of it by putting it in a case and putting on a screen protector but i'm not gonna stress out about a phone getting scratched and showing some general wear + tear. i used to but i don't have the energy any more. it will scratch with either aluminium or stainless steel.