I'm looking at the Nuvi 550 that is the same unit as the 500 but with other maps loaded. The 550 has no Topo maps, but has City Navigator with Canada and Alaska, where the 500 has topo and the lower 48 maps. REI has them for $299.00, where are you shopping them?
2017 White DL650, "Rachel"
Givi Air Flow windshield, Corbin seat, Happy Trail luggage, for now...
2005 Red DL650, "Annabelle"
SW-Motech crash bars and centerstand, Corbin seat, Symtech grip heaters, PIAA driving lights, Fenda Extenda, MP Cycle Designs windshield, Rox risers, mirror extenders, 16 tooth cs sprocket, Adventure Motostuff skid plate.
2002 HD Road King Classic
1976 HD Sportster