yes, I guess that would be possible. However, I think you would either need lots
of money or lots
of friends in order to be able to afford this.
SEASAVER, as far as time shares at sea are concerned, there have been quite a few companies who tried to establish this. The problem was that they usually claimed to have bought this ship or that ship while actually they hadn't bought anything. It was - in all cases - simply a cheap try to rip off people.
I guess that's why few people think of a time share cruise ship as being a good thing.