Oh come on dude. I'm just giving her good advice. You may very much regret owning and operating a Windows based Netbook. People have gone Windows for ages based on one thing, they are cheaper. No argument there, but historically that is the only thing going for them if you want to discuss a no issue OS. That's a fact. I'm going to step away from this discussion because I all ready see where it's headed.
You're going to step away from the discussion because you can't disagree that there's no reason she needs to invest in a Mac computer for a high school student
I used Macs in college for design, and I use Windows personally. With the exception of Vista, I have had little to zero problems with the OS. Especially now that I use Windows 7. Your arguments are based on your personal use, and unless the person buying the computer needs to multitask, write code, make movies and edit on photoshop, where is the necessity in getting a Mac. All current computers are obsolete after four years anyway, so when the time comes that she can make an educated decision on her next computer, maybe she will find a use for a Mac.
Besides aesthetics, I see no use for a Mac for me personally