The Humble Bundle's statistics [1] have offered an argument against that perception for a while. On average a Linux user pays $11.02 for a Humble Bundle, while Windows users pay $5.93 and Mac users pay $8.43. Linux and Mac users are also overrepresented among the Humble Bundle's buyers (having made 8% and 11% of the total number of purchases respectively) compared to the gaming community at large.
That said, I'm not sure how widespread this myth really is outside of select Internet communities. Enterprise Linux users are known to pay for their software (even if somewhat indirectly, e.g., through support contracts), and the biggest myth concerning desktop Linux users seems to be "huh, are there any?".
That said, I'm not sure how widespread this myth really is outside of select Internet communities. Enterprise Linux users are known to pay for their software (even if somewhat indirectly, e.g., through support contracts), and the biggest myth concerning desktop Linux users seems to be "huh, are there any?".
[1] See http://cheesetalks.twolofbees.com/humble/ for a great report.