I've been thinking about a GPS/fishfinder for a while now. Got to decide which brand, and which one to get. I haven't fish big money tournaments but might in the future. I have Lowrance units, no GPS, now. I've heard that back up service with Lowrance sucks compared to Hummingbird... Would rather not spend more than $600 but might. Really doesnt matter about color but really do not know what the advantage would be. I would rather have a unit with internal antenna though.