I have a Navnet 3D which I put on the boat when it was built 2 years ago. At the time I asked the representative why their displays cost so much and he said that they did not sell very many (extremely nice and helpful people at Furuno). He said I could put any kind of display on it I wanted to. I bought a Sharp 26 inch tv with a dvd player in the side from Sam's Club (600 usd back then) and put it on a 14$ swivel for a fiberglass boat seat. The size fits the space, the charts are easy to read and you can sit at the dinette and watch a dvd if you like. Tom Wadsworth Mai Pehn Rai