I tried to curb the map issue by buying a nice handheld and that just crapped out but topography difference was night and day. I have no faith in the cell phone, I take it with a big grain of salt. I used to live on lake Harriet during a period where I received 3 map updates and it would be a major major difference every time. Garmin just released the new gpsmaps66 but at $400, I’m in the neighborhood of the RT9 if I sold my vex, but as others pointed out earlier, i don’t know much about their longevity yet. First world problems.