I've been using my leather smart cover for a little bit now and am wondering what the durability of these things is like? For those of you that have used leather smart covers before, how have they held up thus far? Mine has a few minor scratches but nothing to get bent out of shape over. I generally carry the iPad in a sleeve since the smart cover+back case doesn't provide a whole lot in terms of protection. I paid $70 for this thing so just curious if I need to baby it or if it can take a beating and still look nice.