You know there is a lot of truth to that remark. I'm a very tech savvy person and my family, friends, wife's friends, hell random people in stores I visit ask me for advice about computer parts. When they do I generally try to steer them towards products that have either open or at least very compatible drivers. So while I may only be one person I influence many people in their buying decisions. What's really interesting is that I've actually started to convert my wife's group of stay at home moms to linux, they see her little EEE and love it(I installed ubuntu on it for her). They then ask what it is and promptly want to try it out. Somewhere around 50% of them will actually stay using it once I give them a brief little class of how to use it and where to find all the free software.

And this is the only Linux "evangelism" which seems to really work. Instead of insulting Windows users and telling them how inferior their choice of OS happens to be, just show them what your platform can do. Even people who gave Linux a shot once before are usually amazed since their failed experimentation with FOSS was usually a few years ago (and they usually have no idea of just how much Linux has changed since then). Actually showing these potential converts the money (instead of just talking trash) usually goes a long way toward erasing a lot of the Redmond-generated FUD about Linux (or, at least, it'll make them question all the myths and misconceptions they have).