Journal editor: Our treasurer advises that because of our precarious financial situation, we should change from a paper version to an online version only if doing so will not increase the cost of publication  The cost of converting from a paper version to an online version is high; however, once the conversion is made, the cost per issue is much lower for an online version
Since a benefactor has agreed to cover the costs of conversion, and since we can safely assume that our treasurer is right, we should change to an online version
bases its conclusion on the argument of an authority speaking outside the authority's field of expertise