I'm in the market for a new mac and can't decide between the white or black. Obviously the major difference is the price and specs... but can someone tell me if the outside is made of same material? I stronly prefer black as a color but my friend has a black one and it attracts fingerprints, smudge, etc. I think its the type of material that its made of... so basically Im asking which is easier to keep clean (I know its supid to base my decision on which on will be cleaner but it is an important aspect for me)