FSF обращается к Microsoft: вы не можете быть вне закона

Microsoft and Hostbasket also found that there was a significant difference in the cost of support for the Windows and Linux production environments. The normalized total cost of support for the Linux environment is 238 percent higher than the normalized total cost of support for the Windows Server 2003 environment. Moreover, the relative costs at the different tiers of support are significantly different, with costs for Linux Tier 2 support coming in 218 percent higher than the cost of Windows Tier 2 support, and the cost for Linux Tier 3 support coming in 1,492 percent higher than the cost for Windows Tier 3 support.
Again, it should be noted that at the time of the study the Windows–based servers at Hostbasket were running at only 60 percent of full density and the Linux–based servers were running at only 35 percent of full density. Building out these services to achieve full site density may entail more than just a linear extrapolation of labor costs, as more personnel may be needed to support additional site requirements, so the actual cost of running these servers at full density may actually be higher than we have calculated in the course of normalizing these figures.