well my phone is under contract. i got it thru AT&T last year when the 4S came out. But I am sure i wont be eligible to upgrade. So I dont know the best way to sell the 4S.
Can I even sell it on craigslist or ebay? if its "locked" or whatever?
when people say "locked" they just mean you have to use that phone on a certain carriers network.
All you would have to do is take your SIM out of the phone and put it on craigslist as "Iphone 4S 16gb ATT"
The best thing to do is buy the new phone when it comes out and then just sell 4S so you are not without a phone.
When you buy the new phone, they should not have a problem unlocking the old phone I think. But I could be wrong.
My issue with craigslist is simple. I live in the third most dangerous city in the country... It was #1 a few years back, we were flip flopping with Detroit for #1 and #2... and then Flint, MI joined the party.
When I sell on Craigslist, there are too many scammers, too many people trying to low ball me, and from my experience, I still make more with the fees taken into consideration, cuz each time, my iPhone was purchased by someone not in the US.
Now, with craigslist sales, I have them meet me at a local police station, and I go in before hand to tell them what I am doing. They have never had a problem with it.