I just recently broke my transducer on an old hummingbird depth finder that was on my trolling motor.  I'm probably going to replace it with a new depth finder since mine is outdated.  With money being an issue do most fisherman have a nicer depth finder up front or at the driver seat?  Now I know a lot of guys have expensive side imaging units at the driver seat but I'm just talking about  simple 200-250 dollar depth finders.

A good "rule of thumb" is to have the best unit at the location that you use the most.

If you fish standing up, the larger screen of a two unit set up is best utilized on the bow.

You can still use the broken transducer on the trolling motor with a Transducer Shield and Saver for that style transducer.

If you get another unit, exhange the supplied transom mount transducer for the correct one for trolling motor mounting. It is called a puck style.

Thanks I will definitely look into the puck style transducer.