Refurb Apple iPhone 4 8GB for Sprint (no contract) for $180 + free shipping
newegg offers the refurbished, no-contract Apple iPhone 4 8GB Smartphone for Sprint in Black, model no. MD146LL/A, for $199.99. Apply coupon code "VMEPROMOMAR13" and checkout via V.me by Visa to cut it to $179.99. With free shipping, that's $20 under our December mention and the best price we've seen for a Sprint iPhone 4 without a contract. It features an Apple A4 processor, 326-ppi (pixel per inch) Retina 3.5" display running at 960x640, gyroscope, front- and rear-facing cameras, 5-megapixel camera with LED flash, 720p video capture at 30 fps, 802.11n wireless networking, dual microphones, and more.
Of note, a 90-day warranty is provided but it's unclear who backs it.