In the past I have always sold my old iPhones via listing them on craigslist. Usually within a month of buying my new phone. I have two 64gb iPhone 5, both in near mint condition (always in a case and always with a screen protector). These phones are with AT&T. What kind of trade in/ store credit offers are out there for the iPhone 5 64gb? Do you think I'm better off sticking with my old routine of selling them via craigslist? The thought of effortlessly trading them in is very appealing.