Comment by orbifold

Linux/Unix has a significantly lower barrier to entry compared to Windows and a much nicer command line interface that just works by default. Want to install a C compiler? Just run apt-get install gcc and you are golden. Same for python, ruby, haskell and any other language under the sun. I've barely used Windows since I've outgrown the my fascination for computer games, it has nothing compelling to offer for someone working in a scientific environment, who is not forced to use Microsoft Office.