How does an airline miss something like this so badly?
"Uh, yeah, we'll take 70 of those $300 million planes. Yes, 70 of them. What's that? Oh, yeah, include the undercoating. And an extra key."
7 years later . . . .
"Never mind, we won't need those 70 planes. Right, seventy. Yes, all $21 billion worth. Yes, "billion" with a 'b'."
How in the world do they underestimate their equipment needs by $21 billion? Very strange, unless they're going to replace the capacity provided by these planes with ones from another manufacturer.