Take a look on http://swappa.com/ http://swappa.com/. It's an online marketplace to buy and sell used mobile phones. Swappa is the official XDA Developer market

Take a look on http://swappa.com/ http://swappa.com/. It's an online marketplace to buy and sell used mobile phones. Swappa is the official XDA Developer marketplace and only allows to sell phones in excellent condition. I would go for a Nexus device (Galaxy Nexus perhaps).