What Does Free Software Really Cost?: "You've probably seen the many articles infesting computing publications that blather on about comparing TCO (Total Cost of Ownership) and ROI (Return on Investment) for Linux and Windows, and trying to figure out which one costs less to run. I'm no analyst, nor am I a Fellow at some Institute, nor am I a pundit who is paid to pontificate. I'm just an old country system and network administrator who has been running mixed Linux and Windows networks for lo these many years, and since everything works OK and my customers keep sending me checks that don't bounce, I figure I'm entitled to a punditry or two of my own. The bottom line is Linux costs way less to run and works better. That's why I prefer it."