If you're in the market and don't need the most cutting edge device, Amazon has a solid deal on the LG Optimus G for Sprint. The price for this handset has fallen to a single penny on a 2-year contract. This deal is open to all interested parties, whether it's for a new line of service or not. The Optimus G was previously only this cheap for new customers.
The LG Optimus G came out last fall, but it has since been overshadowed by the likes of the HTC One and Galaxy S4.