Do you want it with GPS or not? Color screen on not? Cheapest Side Scan is $900. If you really want Side Scan, buy a $125 unit now and continue saving for the SI.
Dayton
Gps really doesn't matter to me. My I finder is sufficient. I do want to find one with Color. I am also looking for another unit to place at the bow of my boat that is fairly accurate or can be tuned to read structure properly.