So why bother with a computer that allows you to customize the look and feel of the OS? Is your rationale that most people don't care if the buy a pc, but don't know how to use it? Why then would someone willfuly purchase an S3 or Note2? Battery life is better and price is the same as an iphone 5.
Just because you believe people don't care, doesn't make it so. But you are right that iOS is simple and designed for use by those not tech savy. Notice I did not say dumb o stupid. I have a doctor (phd type doctor) who is a tad older than me and he was asking my opinion about which smartphone he should buy (this will be his first and although he is a very smart person, he is not tech savy.) He liked my S3 a lot, but I steered him towards the iPhone 4S or 5. It was the right thing to do, even though I know he will be using a sub-par OS for those of us whom are more tech savy.