Because fishing is about one thing and one thing only: getting as many fish as possible.
Forget the idea of having a leisurely day in nature or spending time with family or making beautiful memories that you'll never forget. We're not here for that nonsense. We're here for the fish.
The true mark of a successful fishing trip is when you catch so many fish that you physically can't contain them all. So many fish that it's inconceivable what you could even do with that many fish. So many fish that it causes your boat to capsize and sink. So many fish that there might actually be a law against possessing that many fish at one time.
But before you can start catching any fish, you've gotta find 'em. That's where this thing comes in.