thing with cruise ships is they basically can duck out taxes. Its like when casinos had to be boats and then you had them built on artificial lakes and they would go no where but detach from the dock for a period to meet the legal requirement. You could have docked cruise ships acting as all service condos if they would just let them have the same rules. Or better yet have special residential districts that just allow apartments like that to be built.
thats the thing. since they operate mostly in international waters it gives them some sort of tax advantage and they supply from the lowest cost area and such.
Well if you tax what they already have on them. They can go for days. Not sure how many but I know at one point there were ones that went across the oceans. Not sure if they still do as its unpopular to have ones where you can't disembark on see places regularly thats not the ship itself. Also not sure how far the monstroseties they have now can go with the waterparks on board. I suppose it could be farther with the size allowing for more fuel but maybe less given all the space used for crazy things like zip lines or whatever.
and they burn the worst fuel, and often burn fuel while docked when they could be hooked up to shore power.
then they take boatloads of tourists to areas that are ecologically critical - the arctic and antarctic - while their boats burn bunker oil and spew their accumulated feces into the ocean. it's supposed to be treated but... that's just business.