I noticed that the long cruises are priced much, much higher than the shorter cruises, even after adjusting for freebies and no-charge luxury items. The "efficiency" habit in me has a hard time with $550 a night per person when I can get a shorter (14 day or so) cruise with similar port-density cruise for between 1/5 and 1/3 the long cruise price. What you don't get is the same kind of clientèle. That can be good or bad. I usually get along well with people who are also trying to get their money's worth. They're spending some decent money for longer cruises than those quickie ones, for sure, just not 5X for the very long cruise.
For each 14 day cruise, you have to add the flight to from the departure port...in my example, that would be 10 flights and maybe an overnight stay in a hotel to make sure you did not miss the cruise departure. Since this was a world cruise, those departure cities could be 1/2 way around the earth. Our flights were included in the price, as well as transportation to the dock from the airport. Alcohol/drink packages are $60/day/person on Carnival. The excursions could run about $150-$200/per person on a normal cruise, but half the days we were at sea, so on average $75-$100/day/person.
The average age on the World Cruise was 73 and there were no children that did the whole cruise. We have a couple children who joined for a 3 week segment. The entire cruise was broken into six 3 week segments. You could sign up for one or more segments if you wanted just a portion of the world.
Our excursions were not just walking around the port city, or shopping tours. It was not unusual for us to travel 2-3 hours to get to some of the activities we participated on. Excursions were broken into different categories that we could choose from based on physical difficulty. Of the 500 passengers on our ship, only 200 did the entire World Cruise.
Here are some of the things we elected to do:
Snorkeling with stingrays and sharks, kayaking, bridge climb in Sydney, volcano walks, catamaran, river by longboat, jet boat, Komodo Dragons, Tabletop Mountain, scuba, camel ride through desert, tequila tasting, Tango Lessons in Rio, Bike tour, ostrich farm, and so much more. We held koalas and kangaroos, hiked through deserts and rainforests, swam in waterfalls, and climbed mountains. Our families followed us with Facebook postings, and grandchildren tracked us on world maps.
We did not make our shore excursion decisions by how much something costs, but rather on the experience we would have. We did not make a decision whether to have a drink of wine, or whether to have dinner in our suite based on the charges. We could eat in the specialty restaurants on the ship or the main dining room. We could eat early or late...or even not at all. Sometimes you may miss out on things if you visit Sri Lanka and not spend $5 to give an elephant a bath in the river.
...that really made us focus on enjoying the journey. At this stage of our lives, we are collecting experiences and not things.
Again, if you have the resources and the time, I would highly recommend it.