I realize that it depends on the model but with less than $200.00 to spend on a fishfinder, what brand of these three is generally the best: Bottom Line, Hummingbird or Garmin?
If I have less then 200 to spend on a fish finder only? well duh, can't get a combo unit for less then 200. An Eagle Fishmark 320 for 160 bucks would be my choice without a doubt.