An earlier version of this story did not account for the fact that T-Mobile is waiving the $99 down payment on iPhones when people trade in their old devices. With this factored into the overall savings of the trade-in, T-Mobile's trade-in program actually offers consumers a better value than other trade-in sites such as Nextworth.
Want to know how to get more money for your old tech toys? In this edition of Ask Maggie, CNET's Marguerite Reardon lists some Web sites with great deals this holiday season.
Buyers can trade in an older iPad and use the cash to help pay for the new Air or take it in the form of a gift card.
Bored of your old iPhone? Apple will take it off your hands -- as long as you buy a slightly cheaper new one.
Customers who trade in a smartphone can score at least $100 in credit good toward the purchase of an iPhone 5S or 5C.
The iPhone maker is said to be bringing its swap-in iPhone deal overseas.
The Shack will cut you a deal on Sprint and AT&T's versions of this next-generation phablet when you trade in a previous Note.
Just in time for the holidays, the company will buy your used iPhone 4S or iPhone 5, in the hopes of getting customers to pick up a Windows Phone.
An earlier version of this story misstated the trade-in value Target is offering for older iPhone models and where Target is selling the iPhone 5S and 5C. Target is offering at least $200 for the iPhone 5, at least $125 for the iPhone 4S, and at least $75 for the iPhone 4. The iPhone 5C and 5S will be available for purchase at in-store Target Mobile centers.
Customers who swap their existing smartphone for an iPhone 5 with the usual two-year contract will get a minimum credit of $100. But the deal is short-lived. It ends Monday.