Gazelle has long been a popular choice for conveniently turning a used iPhone or iPad into cash, and today the electronics trade-in service announced its own certified pre-owned store for buying “gently used devices” at a discounted price. While the pre-owned store lists categories including iPhone, cell phones, iPads, and tablets, Gazelle inventory is currently limited to pre-owned Apple devices including iPhone 4 and up, iPad 2 and up, and iPad mini. expand full story