Yes, Windows and MacOS users spend more money on buying software so their budget is already stretched, while Linux users have money to spent.
Or Linux users cannot assess the worth of software as they are not used to buy software.
Both probably not what you wanted to hear, and probably not the real reason. I just wanted to point out that we can project everything into the fact that Linux version pays best average amount.
Or more likely because linux has very few games, where as windows has vast amounts. I have bought every humble bundle but never played a single game, I just give them $10 each time to support the idea. I typically spend ~20 hours a week playing games.
Or Linux users cannot assess the worth of software as they are not used to buy software.
Both probably not what you wanted to hear, and probably not the real reason. I just wanted to point out that we can project everything into the fact that Linux version pays best average amount.