정말 유혹됩니다..
- Up to a $300 trade in credit based on the market value for each of your used working devices to get started
- Up to $350 for Early Termination Fees per line, once you send in your final bill
http://www.usatoday.com/story/tech/columnist/baig/2014/01/08/ces-tmobile-early-termination-fee/4379291/