I'm just curious. It's practically standard equipment these days, but when I was first getting into boating in my teens back in the mid 80's, hardly any personal boats had it. And people seemed to stay off the rocks and each other just fine. Heck, nobody had GPS, either. You'd figure out where you wanted to go and follow a compass heading from point A to point B.
I don't see your average weekend warrior ever using it. You might turn it on, and go, "hey, that blip is that boat right over there," but do you actually need it? I'm just wondering how many people actually think the investment in radar was necessary and worth it?