>Boeing and ULA became complacent without competition. The same would likely happen to SpaceX if Boeing didn't have a heavy launch vehicle to rival the Falcon Heavy.

So are you saying Musk would just sit back and collect money from Falcon Heavy for the rest of his life? No, he is planning to go to Mars, so SpaceX is going to advance the technology as fast as it can.

Were you really unaware of that? Or perhaps you work for ULA.