"Princess says visitors who sign up for the new program will get a four-course dining room lunch with wine on the ship, a tour of the vessel and a souvenir photo. They and the passengers they are accompanying will have access to priority embarkation, and they'll be allowed onboard for about four hours. The $39 fee for the experience can be applied to a future Princess cruise."
Sounds like a wonderful experience! I like this idea a lot! From a marketing standpoint it makes a lot of sense.