M$ has stopped selling retail copies of Windows 7. They know that companies don't want that Windows H8 crap and they want to try to force people hands by ending support for XP. Do they really think companies are going to switch to H8? I'm thinking you start seeing Apple and Android sales going...
Rumours are that Microsoft have plans to do away with full retail copies of it's next os. Now like with all other windows rumours I wouldn't hold your breath but still.....
Reference:
Microsoft may scrap full retail edition of Windows 8, offer OEM and upgrade only | The Verge
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