It's a very odd ad I think. If you were to compare Windows vs. Mac OS X on price, Mac OS is cheaper ($129 vs. $199.95 to $319.95). So the ad ends up comparing

It's a very odd ad I think. If you were to compare Windows vs. Mac OS X on price, Mac OS is cheaper ($129 vs. $199.95 to $319.95). So the ad ends up comparing the hardware, with which Microsoft has not much to do... Another thing they kind of hint at is that Lauren in the ad looks like she would buy a Mac vs. a PC if they were the same price. So, it's not saying that Windows is better than Mac OS, it's just saying that she can't afford a Mac, thus buys a PC. The fact is you can't buy a PC with Mac OS X, so she has no choice but Windows. (leaving Linux out of the equation here)