Start putting price on Linux and don't give it free. Learned from Apple, when OSX was free, they can't catch up to MS. Now that you have to pay for it, more are buying them and somehow the more pricey the devices, the more they sell.
Who wants to tell friends, 'hey I bought this for free'. They prefer to hear others saying, 'hey where did you buy that stuff?'.
BUT everyone is proud to say 'hey i downloaded this great piece of movie for free'.
...and..we are off topic