smartcooky
Penultimate Amazing
You mean apart from the internal structure of the moon, the origin composition and structure of lunar surface materials, proof that the moon is receding from the Earth, and proof that if we commit resources, time and effort to a project we can achieve all kinds of stuff?
Not to mention that the studies have lead to the understanding that the Moon was formed because of the a giant impact of a Mars-size planet about 50 million years after the Earth was formed.
Here's the top ten discoveries directly attributable to the Apollo Programme
h t t p ://curator.jsc.nasa.gov/lunar/lunar10.cfm
Of course, an argument can be made that these have no DOLLAR value in and of themselves. Its hard to argue that any pure space research does (the Hubble, Kepler, Giotto, Galileo & the Mars Rover Program would all fall under that same category), but if we are going to expect a dollar value to be attached to the return from scientific endeavour, then much of science simply would not be done.
If their only interest was in a cash return, Johannes Kepler would not have bothered spending his life trying to understand how the planets moved, Galileo Galilei would not have risked his life and liberty by turning his telescope to the sky, and Christopher Columbus would not have bothered setting sail for the New World given that the best evidence at the time indicated that his ships would fall of the edge of the world into an endless abyss.