Let’s leave aside for the moment the wicked thought that some journals might accept articles solely because they will bring in reprint revenue and assume that journals have mission statements, explicit or not, that are to do with meeting the needs of their readers and which drive their selection of articles.

My starting point then is that firms in general make products that they hope their customers value—and if they do value them they will pay for them. So if the product and the buyer are not illegal (or morally reprehensible) why wouldn’t a journal want to sell copies of its articles to anyone who wants to buy them? Moreover, if a journal is proud of what it publishes then the argument applies even more strongly.