I would rather not fly in an airplane that has a mechanical problem. Yes, the frustrating thing about air travel is the lack of truthful communication. Like the departure board showing that you will leave in 10 minutes and there is no aircraft at the gate.
When you book a flight to Chicago and get left in Milwaukee they you have a right to complain and write angry letters. If you took a cruise and it returned to a different port (happens sometimes) and the cruise line did nothing to get you back to your vehicle, you have a right to complain and write angry letters. (This has not happened to me, but from reading here on CM, it seems the lines will either bus you back to your embarkation port, or maybe let you hang out on the ship until she can get back to where she came from.)
A Bad Day At Sea [with power] Always Beats A Good Day At Work
Carnival: Glory 2004, Destiny 2008, Splendor 2009, Freedom 2011, Valor 2012, Dream 2013
Celebrity: Summit 2011
Princess: Ruby 2010, 2014, Caribbean 2013, Coral 2014, Regal 2014
Star Clippers: Royal Clipper 2015