&gt;&gt; A Single page of goatskin might be months farmer wage.<p>&gt; I see your point, but applying it to the moon landing is a little far fetched.<p>Not at all, in the 1970&#x27;s those tapes easily cost a month&#x27;s of an average workers wages. It would make perfect sense to re-use them to save a bit of money, especially if you were doing it at scale and didn&#x27;t realize you were about to erase the master copies.