Excargodog

“Unique” is not an unmixed blessing. You might be hitching your future to a good deal, but it does have a single point failure mode. A large airline with lots of slots carries furlough and other risks, but even if the company goes bankrupt it is likely to be resurrected through reorganization eventually, and you’ll still have a seniority number. But a lot depends on your age, risk tolerance, family situation, and number of years until retirement. Too many variables for anyone to give any pat answer.