I don't want to come off as a linux-elitist but it's simply amazing how much easier my job is on linux. A good example recently was setting up some libraries for a C++ program I was writing to show to my class. Most of them were using Windows and visual studio, took about 15 minutes to download all the headers and libs, and show them how to configure a VS solution to link them. Not too big a deal but on linux, it only took about 30 seconds to pacman and gcc -l the lib. Little things like that keep me interested in linux as a dev tool.