This is not particularly surprising. When the transaction cost to read an article is lower, there's less "need" to use the work you've uncovered. By analogy, Walter Murch says in his book, "In the Blink of an Eye" that film editors need to avoid "seeing around the edge of the frame" - when the editor knows the hard work that went into getting a particular shot to work, the 'sweat investment', it's harder to discard that shot because it feels like a waste -- even if that's not the best shot to use. Similarly, my investment into getting an article means I'm more likely to use it the harder it was to obtain. By decreasing that cost, writers can be more 'objective' about what's actually useful.<p>Second, because I can easily get a different article, if the one I have doesn't say quite what I need, I can find something else.