DOS ran Doom, Mac and Amiga didn't.
DOS ran Warcraft, and Rise of the Triad, and Jazz Jackrabbit, and Hexen, and Wing Commander.
DOS ran Quake, and Elder Scrolls Dagger Fall
All these things were of the caliber that made you want a DOS Machine
Gave us Starcraft, and Soul Trap, and Mechwarrior 2,
Gave us easy Access to the Internet. (compared to DOS at the time where it was possible)
Gives us Lock down and stores, our games don't run, and our computers run slow. We are constantly bombarded by Security holes, spam, and incompatible sites. We are hamstrung by Corporate sponsored computer Viruses called DRM that make it so our machines don't function the way they should. Because Companies want to abuse us, rob us blind.
Are Non-PCs that exist on completely on a jailed walled garden environment, easy to use, but seen as an "Internet Toy" by the Masses.
Android Pads: Only marginally more open than iPad. (and that varies by provider.)
The point is this:Windows sold well because we had to have it to play the games that Consoles couldn't.
Windows sold well later because the Internet and Corporate Communication practically required it.
Now, Windows doesn't run the games we want. Linux and Wine can in some cases run games that (Modern) Windows can't. Windows isn't required for communication and connectivity.