A very interesting article dealing with the assumed and actual cost of publishing. This article touches upon a topic I find very interesting: Journal prestige (as value increasing factor) and its consequences for science. In my opinion the prestige of a journal (mostly based on its IF) is one of the reasons enabling non OA journals to stay in business. Everyone “wants/needs” to publish high impact and assumes that such articles are in general “better”. The problem is its self fulfilling prophecy because papers in prestiges journals will be cited more often just because they are published in prestigious journals artificially inflating the “quality” of the work (#citations). But I might be wrong about it.