Raymarine is not cheaply made. They are owned by FLIR (military and defense), which produce top quality equipment and cutting edge technology like Chirp (downvision and side vision). Known and trusted by commercial saltwater fisherman for gps, radar and sonar. This will be my third year running Raymarine units and I am extremely pleased. Chris Lane, Timmy Horton and Zell Rowland also run Raymarine.