Running around up here in the puget sound, gulf islands and further north requires something more than a hand held so I want to put something in that i don't have to charge etc. It would double as a video display which is a nice add. I was looking at the small northstar which is much cheaper and has the smartcraft interface, but it's not touch screen and has a bigger footprint and the 5208 is pushing it size wise already. Also, I also am not sure that I will always have mercury motors in the boat.....so Smartcraft isn't the biggest deal.