A few years ago, I used to work at a computer hardware store. Across the street, was this huge electronics appliances stores, that also sold computers from some government plan. All of them came with a preinstalled linux flavour (developed by a local company). They did a pretty good job. They wrote drivers for some devices, set up repos to keep the systems updated, and charged around 10 bucks to the retailers to have it installed, or you could buy it for around 20-25. The hardware on those pc's weren't high end, and people only bought them cause of the ease of payments (you could have your computer today, and pay around 50 bucks a month for 2 or 3 years) and it seemed like a good deal for people having their first computer. Since the boxes had a distinctive characteristic, with the guys at the store where keeping numbers. From 10 computers sold, 5 crossed the street just after buying it so we could install windows xp, when we asked, they said, we don't understand linux. 3 came the day after, asking us to install windows xp, because they put a cd in it, and couldn't install the software they needed to use. The other 2, came around a week after buying it, because they felt the software available was innadecuate.

Conclusion and TLDR version:

The average joe doesn't want to stick his fingers under the hood, want something to work. And windows (and osx) does just that.

And if you have to talk **** about other products because they don't suit your "belief", then you, my friend, are a fanboy.

Sorry for the off topic.