Using Windows primarily for gaming, I eventually got tired of some of the issues I had with it (ads appearing in the start menu). I gave Linux a try and it was so so for a while. I kept going back and forth but it's been 2 years now and I haven't had Windows installed and can play 90% of my games without issue. I wouldn't recommend it for everyone. But for those that primarily use their computer for gaming and non-windows specific applications (like web browsing or other various things), Linux is offering some competition for desktop people.
That'd be nice if it actually applied, but Apple has already made exceptions for X among other large companies to allow them to play by different rules in the store. So I'm not holding my breath for any sort of punishment.
Examples: