A fish finder is an extremely effective tool that will allow you to see fish and structure you never knew were there; however, one small misstep in the buying process can make your new device ineffective and, at times, unusable.
Are fish finders a waste of money?
If you hang out around a marina, boat launch or other places where fishermen are with their boats you'll notice that just about every boat is equipped with a fish finder. It is considered an essential piece of equipment, but for most people it is a waste of money because it doesn't help them catch more fish.
Are fish finders worth it?
Simply put, if you fish from a boat or kayak than buying a fish finder is well worth the money. A fish finder will keep you safe, allow you to view and mark important fishing habitat and make you a more effective and efficient angler.