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Message: <blockquote data-quote="Scott F" data-source="post: 445929" data-attributes="member: 23059">For many, (like me) the downscan imaging is not a very valuable tool. First, down and side imaging do a very poor job of showing fish. Second, in places like natural lakes and ponds, there is only rocks and weeds on the bottom which traditional sonar shows just fine along with better images of fish. The Garmin Striker series of depth finders have GPS but no mapping. You can see a track of where you have been but not where you are in relation to depth or shorelines. You must have the Striker Plus series to get the Quikdraw Contours map creation software. f you move up to the echoMap series, they include 17,000 pre loaded maps at no extra charge that I have found to be very accurate. If your lake or pond is not included, you can create your own high definition maps with QuickDraw also included free. With the Humminbird, map chips are not included and must be purchased separately.  Garmin has had older models that are very similar to current models on sale for months at substantial savings. You don’t say what kind of boat you have, but I believe, with the Humminbird, you have to purchase a second transducer if you want to be able to see the depth if you are running at more than a few miles an hour.</blockquote>