I haven't done it yet, but I think about this phenom this way.
We live in a resort town, and people travel EVERY SINGLE WEEKEND from Detroit to drive 5 hours in bumper to bumper traffic to come up here to stay at their cabin or at the Club or at the Hampton Inn. They stay till Sunday morning and then make the 5 hour, bumper to bumper trip home to Detroit. In the summer they bring their golf clubs, in the winter they haul HUGE snowmobile trailers or load the roof of the car with skis.
Some people have a cabin somewhere, or a house in Florida, or stay at the same hotel week after week in the same town.
I think that the people who are doing more than one or even lots of cruises are just like the peple who travel every weeknd to their favorite town to do their favorite sport. These people just don't get to do it every weekend, and they might have to fly, and then they get to spend 3, 4 or 7 days aboard a cruise ship with amazing food, spa, pools, broadway shows, etc, all in one place.
I WANNA GROW UP AND BE LIKE INKOGNITO!!!
Hope this helps answer your cosmic questions!
