If you are going to live on the boat, I'd go the PC/Laptop route
Way more flexible (all nav instruments, + Email
, Office, Photo
, Sound etc etc) and cheaper to replace.
Connections are not hard - you can use a multi port serial
adapter for NMEA 0183
, and talk to/from almost anything. You can have 3G or 4G radar
Overlays, and routing programs. Take a look at open CPN
- it does all this for free, on a laptop
you are likely to have onboard anyway. Use the money
saved for a better AP, instrument setup, Solar Panels
, or a windgen. No other vendor is likely to tell you that!
I'd be happy to help with the system if you need it.