Walmart offers the refurbished Garmin nüvi 57LM 5" GPS Navigation System with Lifetime Maps, model no. 010-01400-01, for $69.99 with free shipping. That's $5 under our December mention of a new unit and the lowest total price we could find for a refurb today by $5. (It's also $27 under what you'd currently pay for a new one.) It features a 5" 480x272 touchscreen LCD (which can be used horizontally or vertically), nüMaps lifetime maps, text-to-speech, USB, microSD card slot, and rechargeable Li-ion battery with up to two hours of run-time per charge.

A 30-day warranty applies, but it's unclear who covers it.