Updated March 11th, 2018.
— How to trade your old cell phones, computers, and other electronics for cash or gift cards —
RadioShack’s Trade-and-Save program is no longer. But there are plenty of other options for trading in your old cell phones and computers and other electronic equipment, including:
You may also like this article by me: Trade-in Your Old Smartphone for an Apple Store Gift Card.
Note: Gazelle will sell you used equipment at a discount. Worth looking into.