Originally Posted by markbvt
While I was researching the Oregon, I began looking seriously at the 376C, but the proprietary memory cards it uses were a dealbreaker for me. No way am I paying Garmin $100 or thereabouts for a 512MB card when a 2GB microSD card costs $7.
That's the main reason I bought the Zumo 550 instead of the GPSmap 478.
I was hoping that Garmin would come out with an improved 478, so I thought this 640 would be my solution. But with zero tracks on LAND mode, it just doesn't make sense for me. I'm hoping that by "zero" stored tracks on LAND mode, they mean zero tracks on the GPS's internal memory and perhaps tracks and routes can be stored on the SD card.We'll have to wait and see.