For those who have seen "the world", Antarctica is "out of this world". Especially when you get the 1% weather window of two consecutive sunny, cloudless, windless days during which you can take the "brochure pictures".
This cruise is fantastic for those who have been around a bit, been to the third world, experienced mud, rain, wind, hail, rough seas, and rude and intolerant whingers who complain that it is too windy/rainy/cold/rough on the boat, and are annoyed that he hot tubs and swimming pools are drained, because if they aren't, the decks will flood.
Where did these morons think they were going? St. Thomas? Either they are ignorant, or their travel agent failed to advise them that they were going to be part of a unique, wild, desolate, but SPECTACULAR experience.