It would be nice if there are vast sea... Some skill about Navigating, Pirating, Shipping, or any other things :p
We get currants from buy something from a vendor, across sea... and sell it back with higher price :-?...
I think it will be nice for social interaction in game (because a group of a ship, there are many players in there doing many things)...
But it's just an idea :p...
So what do you think about this?