It doesn't matter whether she bought it because she wanted a Pro book or one she could encrust with rhinestone; the bottom line is that she has a Pro-class notebook. What she does with it is her own business. The Macbook Pro is a pro-class notebook. The Macbook Air is not. The Macbook Pro comes with a dedicated graphics card. The Macbook does not. The Macbook Air does not. You might not have taken this into consideration when you bought it, but plenty of folks will, and won't delude themselves into thinking they're buying UP MBPs just because the MBA is covered in aluminum.
You will never understand the economics of Apple. I'll agree to disagree.