It about money
Microsoft is a corporation. They sell there over priced products so they need to support them. When a bug is found it is because they are the only ones who are responsible for fixing them. Linux or Unix is usually free to install and repackage. When you purchase an OS you are purchasing the support. Hesse the reason Microsoft pushes out its bug fixes quicker then most Linux distros.
The more you pay for something the better you expect it work and the support to be if it doesn't work. If Windows was a free and open source OS we would not be having these discussions. Linux and UNIX are different OS's yet because there open source they get lumped into the same category more times then not. MAC is a Linux version that is locked down, closed up, and sold, but they are not lumped in the incorrectly categorized Linux/UNIX category.
Fact is, the average user does not care how secure or how things work, as long as they work. They only care after something bad happens to them. Most end-users think they are 100% safe because they have a single virus scanner on there PC. IT departments are stuck back 5-6 years back because of the end-users, while at the same time it is due to the end-users that we have job security. This dicusion should really be separated into end-users OS's and IT professional(Server) OS's.
