I know that many in the group are selling FOSS to the world. Here are two interesting articles about estimating the cost of Linux and FOSS
Avoided Costs and Competitive Benefits: Estimating the Value of Linux, http://www.consortiuminfo.org/standardsblog/article.php?story=20081022062613665 Referenced in the article, WhitePaper from Linux Foundation: Estimating the Total Development Cost of a Linux Distribution, http://www.linuxfoundation.org/publications/estimatinglinux.php -- "As we open our newspapers or watch our television screens, we seem to be continually assaulted by the fruits of Mankind's stupidity." -Roger Penrose
