Librarians amongst many others point towards Open Access Publishing as being the loophole in the current library and journal crisis. However, Open Access Publishing could entail higher costs for the university as a whole even though spendings for journals will cease. There is only a small number of published studies on BioMed Central's and PloS' business models. The same lack is valid for established commercial publishers with their hybrid models of Open Access Publishing. In common current business models of Open Access Publishing will not reduce stress on a libraries' journal budget. Financial consequences of a paradigm shift to Open Access Publishing will be presented for three Austrian universities by way of example. Journal expenditure (print and online) and numbers of published papers by university members will be taken into account to point out the aftermaths of a total shift towards Open Access Publishing.