newegg.com offers the refurbished Clarion N.I.C.E. 430 4.3" GPS Portable Navigation System for $94. With free shipping, that's the lowest total price we could find for this specific unit. Features include a 4.3" widescreen touch-screen LCD, SD slot, MP3 playback, 3 million points of interest, maps of the US and Canada, up to 4.5 hours of battery life, and more.

Of note, no warranty information is given.