"Pay for our OS, we promise you'll be able to do all the stuff you can already do for free real soon now at only a minor performance penalty!" seems like a real

"Pay for our OS, we promise you'll be able to do all the stuff you can already do for free real soon now at only a minor performance penalty!" seems like a really peculiar advertising approach. Don't get me wrong - it's a good thing on net, but it still doesn't provide the kind of justification that happens in other computing sectors (for instance: "I want to play games only available on Windows").