Comment Re:Good (Score 2) 302
Very interesting point, in theory. Luckily, that kind of thing has been studied, and it=s the other way around. Copyrights hinder availability, and entering public domain is an incentive for publishing.
Look at this, it was a study on Amazon availability of books : http://offsettingbehaviour.blogspot.co.nz/2012/03/copyright-stagnation.html.
This shows that books seem to get republished as soon as they enter the public domain, and for a long time after that too.