1. You mean how the two largest ULCCs have to merge because they are running out of markets that support daily service, and are already cannibalizing each other's routes that do support daily service? That's why Spirit and Frontier have so much more overlap than JB+NK.

2. The point isn't actually the typewriter or dead model, it's an illustration of how stupid it is to use your purchase price as your main data point for sell decisions. THAT was the point of the illustration.