Microsoft to sell Windows in Vietnam - in installments!

It's nothing to do with virtualization, but it's something that I thought would make an interesting 1st post after a while away from my blog.
According to a news article that I saw today, Microsoft are to try and legally sell their product on the streets of Vietnam, where piracy is extremely high, and copies of Windows can be purchased for as little as about 50p in UK currency. One of their plans is to try and sell Windows in 'installments', in the hope that it will be come more affordable.
But in my opinion, 'Windows' and 'affordable' are two words which don't go together in any way that you could try. So why can't people in Vietnam, and for example, China, switch to using an operating system that is stable, free (as in speech), much faster than Windows, doesn't crash every 30 minutes and is durable enough to run a server farm, or just the PC on your desk, without needing to constantly reboot - for example Linux or BSD.
But I don't think anyone would buy a Microsoft product in installments, when Linux and other free software have much more desirable qualities. My 2 cents :)