Walmart offers the refurbished Magellan RoadMate 5230T-LM 5" Portable GPS Navigation System, model no. RM5230SGLUC, for $44.98. Choose in-store pickup to avoid the $4.97 shipping fee. That's tied with our mention from last week as the lowest total price we could find for a refurb by $5. (It's also $75 under the best price we could find for a new unit.) It features lifetime map updates and traffic alerts, highway lane assist, OneTouch favorites, and AAA TourBook.
A 90-day warranty applies, although it's unclear who backs it.