Air Force launches with SpaceX are less than half the price of ULA launches. 
Can you clarify how you believe Musk's companies haven't delivered?
But of course, the opposite is true: Being, Lockheed, GM, Ford, etc. enjoy a lot of help from the government (money and regulation) and use a bunch of dirty tactics against Musk's companies. And despite this, SpaceX and Tesla did things the incumbents were incapable of doing. In some cases things that were said to be impossible rather than just uneconomical.
I think at least the "usually" in your post is unwarranted.
From their site "Initial trial installations are complete and undergoing evaluation, customer installations are about to start and will ramp up through 2017."
Seems like it needs an update, 2017 is almost over...
Model S: 70k
Model 3: 35k
Falcon 9: ~100 million