I work at a certain big box outdoors retailer selling fish finders, so here's my two cents worth. For 90% of fishermen, Garmin is the best unit on the market. Easiest to use. Good image. Pretty much trouble free. With comparable screen size and features, the least expensive out there. The Striker series is good. The Echomap is much better...comparable to Helix or Elite. Big sale starting next Fri the 15th. The 93SV will be $599 and 73SV will be $499. That's touch screen, side view, maps. I've had a 73SV on my boat for 2 years. Going to buy a 93 for the console and move my 73 up front.