The number one reason to stick with Windows on a network is cheap aquisition cost. Why pay more for something that is stable and usable with minor tweaks?

There is a difference between buying quality used equipment which is really cheap, and buying crappy cheap hardware.

My post was a reaction to people who were attacking Windows, and trying to convert a friend of mine to switch. That is why so much of the post was explaning away the apparent weaknesses of Windows.

I like Linux too because it does some truly cool stuff. The cost is in the learning curve but it can do some great things.