It seems like a company can only make one successful move at a time (in what I find a very ugly) industry. At the lower end Boeing struggles with the 737 being too large for a lot of markets. There Embraer, Bombardier (now part of Airbus), and a bunch of other companies seem to have an opportunity, if they can execute. It'll be interesting to see what Boeing does there given the cozy relationship with Embraer.