Please help me find a case for my fridge, I can't find one. It's weird because there are thousands for iphones, why wouldn't they make one for fridges if esthetic is equally important in both things?I'm not sure why you're so worried about scratches. Did you buy your iPad to use or just put on display like some kind of artifact?
I've never used a case or skin on any of my Macs, iPods, iPhones or iPads. Yes Aluminum can scratch and scuff. It is used because it is fairly light, inexpensive and easy to work with. Other materials may be more resistant to marking, but they have other trade offs.