If you're a cheapskate and don't want to (or can't afford to) use a smartphone for mapping, look at GPS units designed for hiking instead of bicycling. For some reason that I do not understand, the hiking GPS units are much much cheaper. I expect that the Garmin hiking GPS units will use the exact same map data as the Garmin bicycling GPS units. The main negative to the hiking GPS units is that they are somewhat bulkier (larger and heavier) than the bicycling GPS units.