Yugster offers the refurbished Cobra SPX7700 Maxiumum Performance Radar/Laser Detector for $49.97. Coupon code "DNCBRA" cuts it to $48.97. With $5 for shipping, that's $104 under the lowest price we could find for a new one. It features a 1.25" color display and voice alert.
Note: A 30-day Yugster warranty applies.