Samsung has a great offer for you. Purchase a new Samsung Galaxy S III, Samsung Galaxy S II, Samsung GALAXY Note or any new Samsung smartphone and they will purchase your old handset. Just get a quote for your old phone by filling out the form on Samsung’s Facebook page. The questions asked will determine the price they will pay you for your old model.
If you like the price, go out and buy your new Samsung smartphone and then send in your old phone to Samsung within 30 days with a copy of the receipt. Then you will get a check. All models of smartphones are being accepted.
Just be aware that there is a drawback. The money you get is not as much as you would get arranging a private transaction, but it is easier. So it all evens out I guess.