The cost of upgrade
Scott Bellware started it, and Sam Gentile continued, Windows is not usable out of the box for power users. Right now I quote a figure of about three days for me just to set up a new machine so I can start working, and there is going to be a period of reduced prodactivity when I get the machine the way I want it.
It is not just installing software, it is also setting up path variables, letting Windows know that I am not a dummy, bringing over shortcuts and extensions, etc.
Sometimes people don't realize why I hate moving machines, or work at their machine, even for a short while. I am sorry, but WinKey+R, N should bring Notepad2, and Ctrl+B will take me to the implementation of a method. I should see file extensions and typing Booish would give me a interpreter into the framework.