It is a good question. We do not see many new shipping lines, cruise lines or car companies start ups - that make it. The costs associated with carrying fare paying passengers are high - as it is for 'Planes and Trains and Automobiles'. Perhaps not enough advice is taken? Perhaps the advisors want to make money and cannot do so by saying, "Don't be crackers!"
The airline world has been in consolidation for - what - 20 years?