It seems you don't know a lot about internet, the cost of the internet depends on the boat position on the map ... if the boat is near a country coast you can get internet from that country in some ways, if you are here https://www.google.ro/maps/@31.0530448,-46.8915094,8z?hl=en then you my friend will have to pay for satellite internet and not every boat has satellite internet because that is a little expensive.
It seems more likely that you don't know a lot about cruiseships. I've been on many cruise ships and everyone of them has had internet, though the speed/service can be up and down.
http://www.cruisecritic.co.uk/articles.cfm?ID=1419
It seems you didn't read the whole topic dude!!!!
We or at least me want a ship only for us! Because if you want to go on a normal cruise just book one and get shitty internet! I am trying to make a personalized offer here that can even let you in the nearest port to your hometown!
And if you my friend trust the internet from a cruise ship then I am sorry for your BTC and all your security in terms of online things!
Also my dear friend
tell me how much do you think this thing costs?
He's got a point...