Walmart offers the Garmin nüvi 30LM 3.5" Portable GPS Navigation System with Lifetime Map Updates
. Opt for Site-to-Store pickup
to avoid the $4.97 shipping charge. That's tied with our May mention and $13 under the lowest total price we could find for this GPS without lifetime maps. This GPS features a 3.5" 320x240 LCD, up to four map updates per year for life, microSD card slot, and voice guidance.