The Zumo line of motorcycle models are quite expensive, and in comparing features it seems I could get more features and value by getting a Nuvi 500 and a 60Cx instead of a Zumo 220 or 550. Any thoughts on this? I want a unit for dual sport riding on paved, and FS gravel roads, plus on trails not on maps. I also want a unit for hiking and being able to return to trails and places I've hiked or bicycled to. I need to be able to capture tracks of where I've been and re-use and share them. And I want all the usual driving features, for use in the car, truck and street bike. I don't need an MP3 player and can live without bluetooth. Anyone bought both of these? And if so, for the same reasons? Or would I just be wasting money? I mean, can I do what I want with just the Nuvi 500? It has better maps, but if I need to find my way back out of the woods, on foot or on a bike, will the Nuvi do that for me? Any input appreciated.