Well said. It's like paying for bottled water: the stuff falls out of
the sky just about everywhere... but people still pay for the
convenience. With *some* of my stuff, that's what you're paying for...
convenience. It'd be a better use of your resources to pay me $6 than to
spend twelve hours online trying to dig it out. But *most* of my stuff
goes well beyond convenience.  Some of the Saturn drawings, for example,
I could tell you exactly how to get: all you need to do is hop a
jetliner, fly across country (or across oceans, depending on where you
are), gain access to such and such archive or special collections
repository, and spend a day or two trying to make heads or tails of a
poorly constructed indexing system that seems to miss important details
or files things under the wrong name or doesn;t have things listed at
all. In that case, six bucks trumps the thousand or so and several
man-days you'd otherwise have to spend.

Trust me, I've considered simply offering up a bunch of interesting NTRS
PDF files. That'd be *easy.* But it'd also be kinda... I dunno. Seems
sleazy. So far, only one of mine comes from NTRS, and that's because the
drawings in the online version suck, while I managed to get hold of a
*real* copy and make far superior scans from. So the report is there for
the text, the scans are there for the drawings.

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The fact that I have no remedy for all the sorrows of the world is no reason for my accepting yours. It simply supports the strong probability that yours is a fake. - H.L. Mencken