I know ubuntu is free and windows is not, but for someone who already has windows, why should he still move to ubuntu?
closed as not constructive by mikewhatever, Florian Diesch, Tachyons, fabricator4, Chan-Ho Suh Dec 10 '12 at 9:53
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It depends on your application. I have to run some Windows desktops/servers because of certain applications, but I also run Ubuntu (and other Linux) servers because:
When it comes to desktops that don't have to be Windows, its very hard to go past a Mac these days. But if you're stuck with PC hardware, its very hard to go past a nice, quick, free version of Ubuntu!
Here's something a little more comprehensive : Windows 8 vs Ubuntu: battle of the operating systems
Ask yourself this:
Do I need DirectX ?
If yes: Windows.
If no: Ubuntu/linux.
At work I am 100% using ubuntu linux, for anything productive, our server farm is linux which of course helps.
At home I'm using Windows to play games.