There is however a problem. More and more marinas are enforcing a no live aboard rule. (~>95%) so it is very hard to find a place to legally live on your boat. Extra fees for that, when possible. Those rulings also lead to the marinas that allow it, to be in sketchier areas, industrial even, so as in a big city, you have neighborhood issues. The communities are pretty interesting though. A lot of do it yourselfers. Which should be noted for anyone dreaming of this life style. There is, a lot of maintenance. (Salt and sun, being your direct threats.)