"The ROI of open-source software is a contentious issue.
"Several recent studies, conducted by Yankee Group, Jupiter Research, Forrester Research and others, have focused on the ROI of upgrading a Windows installation versus switching to Linux and have concluded that it is less expensive to stick with Windows. But the reports miss a critical point: switching from Windows to Linux is the worst-case ROI scenario. After all, the new platform requires training and perhaps hiring new personnel--always expensive propositions--versus merely paying for licences..."
