1. Because the windows experience can't compete with OSX
2. Good question. Why? Why don't they compare a windows laptop with a Mac Laptop? Because there's no even comparison. Check the 'best of' lists...
3. That's what you say when you can't compete with the experience (but if it is about the specs, the Air still wins)
4. But it's okay for Samsung to say that about NFC?
But when it comes to windows people say
"Easily upgradable" (to make up for laggy software and sub par builds)
"Much cheaper to buy" (when you don't include AV, Office, Creative apps, repairs and quicker upgrades to a new machine because the old one doesn't work as fast)
"Much wider adoption" (because a lot of people can't afford a better experience).
"Great at math" (I'll agree with that one).
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http://youtu.be/84NI5fjTfpQ
They want people to give feedback so that they can build it to what people want.