How do Delta, United, American Airlines, and Southwest all operate within the same market and not have fare wars constantly leading to bankruptcy? If you were correct, it seems like it would be impossible for several airlines to operate within the US. Yet, several airlines somehow manage to set prices that allow them to operate. I'm not saying Lyft and Uber will ultimately be successful (I don't know), but it wouldn't unheard of for multiple players to operate in the ride sharing market and not constantly have a fare war.