I was wondering the same thing. I bought a boat with a Garmin GPS
2110 which seems to work fine, but it does not have the maps I need. This 2005 vintage chart plotter uses the old Garmin
data cards that look like an oversized chicklet. The cards are very hard to come by.
While on my last big trip, I used both the expensive Furuno
plotter and iNav on the iPad
. iPad actually had better maps.
So, why buy a chart plotter? I can buy an iPad with the cell card (and GPS) for $400 and the screen
is large.. Maps are the same price
as for a chart plotter.. I can buy a back up and it is still less than a chart plotter with a smaller screen
. Can get a mount...I can get a waterproof case and I can take it inside and plan a route
while sitting somewhere comfortable.
what am I missing? I don't care about interfacing with the autopilot
. Don't plan on getting radar
. I like the depth sounder
to be on a different screen.