Some of the happiest cruisers we've encountered stood behind us boarding Sovereign of the Seas for a three night weekend cruise.
From what we could ascertain (they had a head start) they had either booked or been invited late the night before. Several men and women of uncertain ages wearing rather fashonable shorts, shirts and sandals walked aboard with us, went straight to the pool bar, and stayed there.
For three days. In the same clothes. It appeared they ate at the pool grill and slept (or whatever) in the lounge chairs. I assume they had a room somewhere but they didn't seem to use it. They remembered us (we couldn't help but remember them, they were wearing the same clothes) as we left the ship, said they had a great time, ought to do it again.
Makes me think the rest of us make too much out of this cruising thing.