Because I personally have T-Mobile? Because they offer a lower price on a brand new phone as opposed to a higher price on a refurbished unit? Because it would come with the exact same manufacturer warranty as if I got it through Apple, so if there's an issue, I can still take it into the Apple Store and get the exact same customer service? Not exactly sure why someone in my position would be better off getting the phone from Apple instead, unless it's for the branded retail bag or something. Obviously, if you're not a T-Mobile customer, then it's a different situation.