Having been on a number of cruises I can testify you will want to spend almost no time in your room, regardless of size. Therefore, my advice is to get the smallest room you can, because you know it will only be 2% smaller than the larger rooms that cost a whole bunch more money.
Then, with all your extra money, you can:
- charter a private helicopter to walk on a real glacier;
- dive through the rain forest on a zip line; or
- see real Mayan ruins.
In other words, have the adventure of a life time!