$200 fish finder?

West Marine has a Lowrance Mark-4X DSI Portable (non colored) for sale for $199. It's on clearance because it was d/c but DSI is awesome.

do you mean FF only - not FF and GPS combo unit?

Its just the FF not GPS combo unit. Wish it did though.

do you prefer DSI over GPS?

since I do not have experience with FF I still cannot decide if DSI worth extra $$$

Good point. I'm new to all this as well and I am wondering now also if DSI is effective to see structure or is regular sonar just as good? If I am fishing from say 10-100 feet of water what would be the best route to go to see all bottom structure and fish? I just want to be able to see if there are obstacle, that could cause me to snag, especially if I am anchoring down.