[pydry]

The computers and communication tech you love were developed as a result of the moon landing. Loads of stuff like that entered the public domain.

That's apart from improvements in digital imaging, large scale manufacturing, material sciences and flight control that were derived from the project.

Moreover, it was a longer term investment in humankind becoming a spacefaring species - something that will be necessary for our survival.

It was a bargain.

[eru]

You are missing opportunity costs.

All the resources that went into the moonlanding could have gone into something else. Eg could have stayed in private hands.

For a different example:

Yes, in the real world WW2 sort-of gave us computers. But IBM (and similar companies) would have invented electronic general purpose computers anyway, and probably sooner, if there hadn't been a war going on.