America has far more lakes than airports. By itself, my home state of Minnesota has more lakes than the entire nation has airports. Given this 50:1 advantage, floatplanes or seaplanes make a lot of sense; there are many places you can land, plus you can reach interesting locations you never considered in a land plane.
Lucky me. I’ve gotten to fly lots of light floatplanes and I get a huge smile on my face every time I launch from water or splash down in a lake. The sensation has no match in landplanes. Once you’ve flown a floatplane, you’ll forever look at flying through a new lens.