Pretty much any American airline that provides "better" service generally does something along the lines of having a very limited coverage map and a more-or-les

Pretty much any American airline that provides "better" service generally does something along the lines of having a very limited coverage map and a more-or-less a uniform fleet. Most problems with air travel are "last mile" problems, with "last mile" is defined as flying to a location that does not have a critical mass of service to really be a "full service" city.