The market for your old cellphone has never been hotter.
Apple is going to let customers to walk into retail locations with their old iPhones and hand them over for new ones, as long as the things work and don’t have water damage. And Apple stores are only the the latest potential suitor for your embarrassingly antiquated gadgets. Apple already accepts used phones through its website. Such sites as BuyMyTronics, Gazelle, and Glyde offer cash for used electronics. This summer, T-Mobile has been braying about its newly generous trade-in programs as a way to differentiate itself from AT&T—which countered with an announcement that it would be more flexible about its own upgrade policies.