This would be laughable, but try to remember ...
The idiots on the ground at most "home electronics" stores are brain-dead, minimum-wage slaves to whatever Corporate says they must do. Well over half of them probably believe the MS propaganda, because they quite simply don't know any better!
This in turn will be passed on to the consumer, who in general is even more clueless.
The truly sad thing is that there is no way to prosecute Microsoft for what is (in essence) "false advertising by proxy" ... I get thrown out of "office supply" stores on a regular basis for loudly allowing as to how the sales-droid is clueless, simply parroting the company sales pitch, and can I please talk to someone with a little bit of technical knowledge?
It's hard to fight a huge corporate marketing machine with a gigantic war-chest ... but I have found that when addressing individuals & small groups it helps to point out that Microsoft does not exist to help individuals get on with their computer needs, but rather Microsoft exists to pay it's corporate shareholders. Linux & the BSDs (including GNU, GCC, Sendmail, Apache, Mozilla, KDE, Gnome, et ali), on the other hand, exist because someone had a need for a computer tool, wrote it, AND DECIDED TO SHARE IT WITH THE WORLD.
There is a big difference, at least in my mind.
Another thing to think about is that huge corporate entities will eventually go away. Where are Burroughs, Sperry, Allied Signal, Philco, Amdahl, Remington Rand, DEC and ROLM? What about fscking Enron? All gone.
On the other hand, FOSS, by its very nature, is here to stay ... and I think Microsoft is not only scared spitless, but too much of a dinosaur to be able to change its business model fast enough to remain viable for another ten years (or so).
Time will tell. Onwards & upwards.