I'm going to offer a different point of view. With airlines now having weight restrictions, traveling with what is bascially an extra man's suit is not all that necessary. If it means a lot to you, do it, but if not seek an alternative.

As we have aged, my husband can no longer help load luggage in the car, carry it or help to put bags in an overhead locker on a plane. We are traveling much lighter.

It's your cruise: do what you want with it. Dress up or not. It's your vacation.