Northwest-Outdoor via eBay offers the Lowrance Elite-5 HDI Fishfinder Marine Chartplotter GPS, model no. 000-11146-001, for $259.95 with free shipping. That's the lowest total price we could find by $50. It features a 5" color display, 480x480p resolution, twelve supported languages, and 50/200kHz + 455/800kHz sonar frequencies.