I was wondering how fragile the MacBook cases are. From what I have expierences they are pretty sturdy as long as you take care of your labtop. However, from what others say about their expierences, its like keeping a soda can from denting. Since I have limited expierences with the cases, I was wondering what everyones take on this. Are they acceptably sturdy or do they dent way to easy? I treated my old labtop like gold, but when I get my new one, I will be doing alot more carrying around with it then my old one, so this is my concern.