How to buy $1000 phone for $500
1- give cashier $500
2- Take Mobile
3- give cashier mobile and tell him that he has from you $500 and a phone worth $500
4- while the cashier is confused and thinking, take the $1000 phone and run.
I'm not saying they should sell at the same cost to produce you have other things to pay for. But what Apple does is basically sell for over double the cost it would reasonably take to produce. Just look at the stats of your average macbook.