I am with the Elite 4 DSI crowd. If I am in a full sized bass boat, standing up far away from the unit, a larger screen would be nice. However, I am sitting down most of the time with the unit on a ram mount tilted to almost right in front of me. When I stand up the screen is still large enough to see since it is mounted high on the mounting board. I frequently have to paddle the boat because of the heavy grass in areas I fish and the fish finder can get into the way sometimes. If it was a larger screen it would be an even larger issue. I spend time using the fish finder but I spend much more time actually fishing. The Elite 4 DSI works great for me and I would buy it again.
That is why they calling it fishing and not catching.