No other OS runs games half as well as windows does. Otherwise gamers would have switched away from it years ago.
Gaming support and domains/networking are why windows is still the most popular OS for desktops. They just do it better and more user friendly :/
Yes, this is currently true, however, I will also argue it out.
For example, I have a fairly huge list of games on my Steam account and a great many of those games also run just fine in Linux.
I have 2 fairly decent Laptops that both have a copy of my steam stuff on, and one is running Windows 8.1 and the other is running Linux. I currently have Kubuntu 14.10 however, I have mostly been on MiNT. Makes no real differece.
The thing is that when I compare the games on each laptop with each other as to which one plays the games better, there is ZERO difference.
The Windows one has Intel 4600 and nVidia 870 Graphics and the Linux one has ATI 5780 and so there will be the differences there, but other than that, to argue that Windows is better, is simply wrong.
OPf course there is also no doubt that the number of games that Windows has compared to Linux, is oceans apart, but the gap is closing VERY quickly and again, when you consider that SteamOS is also available, and that games on SteamOS all run on Linux ( I think I have seen one or two that dont ) again this is also closing that gap.
Now, with the games that I have played with PlayonLinux, I have, as I have clearly stated, had various levels of success and failure and so yes, I fully accept that Windows is the best option, but to say that its the ONLY option, is simply wrong. All the games that I want to play on it, I have thankfully managed to get working and to get working mopre than well enough for me to not worry about it.
Dawn Of War and all its Family, UnReal and UnReal Tournament, Quake and Doom and all their family of games I have had running and they all run without a single glitch ( in as much as I have tested them ) and so for me. there is absolutely ZERO reasons to stick with Windows at all, and the same could be said for a whole load of people if they actually gave Linux a fair shot and actually spent some time with it, then they could see if they liked or disliked it.
But again, you say "Otherwise, gamers would have switched away from it years ago!"... The thing is, that many have... There are thousands of people who used to use a PC to play games and now they have their XBOX or PlayStation. They have left the PC in the Hundreds of Thousands. Irritatingly, my son and pretty much all of his mates have all left their PCs to play games on their XBOXes. If you ask almost any gamer these days the PC rarely comes up compared to the number of XBOX or PS users, and its the same when you look in teh shops for games... The XBOX and the PS have rows upon rows of shelves of their games and the PC section is often a handful in that far corner over there!