AT & T launches a program in its stores for trade in old cell phones , including competitors ' Verizon and Sprint have long offered buy - back programs . Best Buy and eBay recently launched their own gadget trade - in programs .
AT & T launches a service in its stores for trading in old cell phones , including competitors ' Verizon and Sprint have long offered buy-back programs . Best Buy and eBay recently expanded their own gadget trade-in programs .