Or we could compare successful project of today (A380) vs failed project (Spruce Goose).
Or, I know it's not as romantic as a real living person on the Moon who then comes back home, but we have robots on Mars. And on comets.
>I can see how someone someone might get the impression we aren't able to successfully deliver large projects any more.
We're all clever people and can convince ourselves of anything if we really try. Why not be positive? :)