re: Another good reason
It may sound superfluous or ridiculous, but for me, the most important reason is for humans to get the perspective of Earth, from the Moon.
At the poles, the Earth will be very low above the horizon, even at times below it and it would take more than one earth's day for our planet to completely emerge from below the horizon.
The Earth from the Moon looks fragile, lonely, small but yet very brilliant and it looks like a planet, not a star as it would from a few millions kilometers distance and it wouldn't take half of the heavens as it does from Earth's orbit.
Raoul