One thing I've learned in my old age is GPS' change/improve about as fast as computers and cell phones. Rather than put out 1-3K for a dash mounted marine unit that will be obsolete in a year, I'm considering a hand held. The Garmin 450 series acts like an Ifone, touch screen, scroll quicker. Yea, I know, they're not as cool as the built in units and those big pretty displays look hot, but at about $400 I won't feel bad about replacing it when it becomes obsolete. Built in antenna, cigarette lighter adapter, budda-bing, ready to go. What do you guys think?