Actually as every day/month/year goes by all of these airlines have more and more guys who will spend their career right where they are. All of us have hundreds of guys/gals who have been with there company 6-7 years..... so lets think about that. Big hiring boom the past couple years at all the big guys.... if someone didnt leave then ( and they had the quals ) they probably are not leaving. And the reasons are varied.

Will most eventually move on, probably. But there are many at SKW, RAH, ASA, Comair etc who have been there long enough and have enough seniority that life is pretty good and they aren't giving it up. OR they may not fit the mold of some companies or they may have something in their background that would stop them from getting hired elsewhere. Fact of the matter is while these carriers are stepping stones for many they are the final stop for quite a few.

note: yes I know a couple guys with 10 years who are in the pool at SWA.... but they are the exception rather than the rule.