Which is interesting, because at the end of two centuries ago, I think they did...
Lots of what Ops have said about Southwest Airlines is true!Their biz model kept them from going broke when everyone else did,its a great short hop airline,@ one time they advertised "the company plane @ affordable prices!" They are sort of lone wolfs,dont share coding with others,have,like the Op said different Union rules but they are efficient,convient and ON TIME!their ticketing system is something Amtrak might look into,it works pretty darn well,
Im not saying its First Class Asian Airline service but IMHO theyd do a first rate job of running ANY transportation system of a short/medium type!
(PS- Ive used Southwest as much as the traveler does Amtrak!!!)