Update: The promotional code has been taken down - probably because too many people tried to use it. Bummer.
Looking for a new phone that isn't a Nexus 4? Well, you may want to head over to Best Buy Mobile's eBay Store (ugh), because there's actually a pretty awesome promo code you can use to swing a great deal on an on-contract phone.
For any phone with a plan rate greater than $29.99, whether on a new account or as a contract renewal (upgrade), you can get 25% off the cost of the phone - just enter the promo code "EBSAVE25" at checkout.