I'm thinking about getting the midnight colored MBA but I'm worried about how easy the ports will get scratched up? I rarely unplug my laptops because I almost always use them at home on my desk. But I am always very careful when I do unplug and plug them back just so I don't worry about scuffing up anything. I have always had silver colored laptops but Best Buy has a 16/512 model in stock but its only available in midnight color. Just wondering how easy do the outer part of the ports wear out in terms of the midnight colored coating.