>>966464>had a few before.. old hummingbird, low end garmin and a intro lowrance. it all depends on what you need one for. I like that I can use them for navigation. no more pulling out the cellphone (though i still use the navionics app on the phone when i'm in sloughs and shallow areas) gps changed my life as far as getting here and there and knowing where you are in relation to what. down imaging and sideview changed the game because damn..i can see every bit of structure and what hanging around it really clearly. difference is also noticed when setting sensitivity ranges. my first ff's i could never dial them in completely, too many arcs turned out to be debri. with the helix models I kind of know whats what because they have higher resolutions and are more graphic if that makes any sense. I usually run the di and sonar side by side. the di will pinpoint the structure and the sonar will show the fish arcs (air bladders)>one thing i do find a bit annoying now is my dependency on the electronics. it runs my life when i'm on the water. I feel like im constantly staring at the ff not checking out the scenery or watching that bird fly by..Ha, I still keep the cell phone out.
Sounds like DI and SI are the big difference. I'm out deep a lot so not sure how useful they would be.
I'm hooked on mine too. Sometimes half the fun is seeing what shows up on the screen.