I ordered a full-price 6S Plus on launch night because AT&T has removed subsidy pricing from Apple.com. I planned to move to T-Mobile over the issue. However, now I may stay with AT&T. I would like to keep the Apple order since it will arrive on launch day (or it should). Obviously, a Plus with AT&T is a few weeks out. If I go ahead and order a 6S or 6S Plus with subsidy pricing at ATT website, is it ok to sell that phone? I figure I would need to remove the sim, so it will be open box, but with the $405 discount on the phone, I should still make *some* money to put towards my Apple order, yes? Is there any issue selling a phone that had been sold to me by ATT under contract? Obviously it would be locked to AT&T, do some people still want to buy them when they are locked to AT&T? Thanks.