Your example actually helps prove the point: the fact that Linux can use some of these advantages but not others lines up pretty neatly with the fact that it's generally harder to get Linux running on a given system than it is Windows. I say this as someone whose used Linux and thinks that practically everyone could benefit from giving Linux a try as their primary personal computer (with the always-major caveat that you have to be careful about hardware purchases and/or have someone knowledgeable set it up).