In the scheme of things Carl I would guess it would be a question of
wanting to preserve anything of major historical importance.
Did they think Columbus' first footprints on the beach were
of equal significance? Probably, for about 5 mins
By the time we got back to the moon there would be so many relics of
the achievement getting there that the first footprints would be
an afterthought, kinda like a heritage listed building stifling development
in a huge progressing city.
Steve