I thought the greater implication of your parenthetical was that there is a danger that down the line fewer books of probably less quality would end up being written.

I gave an example in the context of encyclopedias where vastly more articles of at least equal quality ended up being written.

I'm asking for any citation you can give of trends that go in the opposite direction of encyclopedias, music recordings, blogs, citizen journalism, propaganda, to name a few. It's my observation that when the cost to publish and read hits essentially zero the amount of content goes up, not down.