Within the digital world, the cost of publishing and distribution drops dramatically (not to zero, but much closer than ever before)
Is this true within an academic publishing context? First copy costs remain substantially high: editing, review, typesetting, server and band with costs, marketing etc. are still part of a digital only model. One thing that is important to explore though is what these first copy costs consist off in a digital context, to explore from there what the profit margin is that publishers put on top (plus cost for printing etc.). This could lead to the development of perhaps a more fair and transparent system based on actual costs. For books the OAPEN-NL project tried to do exactly this: https://openreflections.files.wordpress.com/2011/03/oapen-nl-final-report.pdf