As one of its daily deals, Best Buy offers the Magellan RoadMate 5320-LM 5" GPS with Lifetime Map Updates in Black, model no. RM5320SWLUC, for $79.99 with free shipping. That's $10 under our mention from two weeks ago and the lowest total price we've seen. (It's a current best by $29.) It features automatic rerouting, a 2-hour battery, and USB. Deal ends today.