Very simple answer for me Kuki! I cannot be bothered by work when I'm on a cruise. They can't call me, they can't drive to see me, they can't page me.
When I'm on a cruise I never have to go anywhere to get or do whatever it is I want.
If I go on a land vacation they have to know the hotel I'm staying in. In this respect it is just an extension of my home. But if I stay at home there is too many chores staring me in the face to ever relax.