BuyDig offers the factory-refurbished Garmin nüvi 2689LMT 6" GPS Navigation System with Lifetime Maps and Traffic, model no. 010-N1188-02, for $179.99. Coupon code "AUTOSMART" cuts it to $149.99. With free shipping, that's $30 under the lowest total price we could find for a refurb and $75 below the best deal for a new unit.