So the high end 2.4 Mac Book is $1599 and the base model Mac Book Pro is $1999. To me if I were to spend $1599 on a 2.4 mac book, another $400 bucks wouldnt be out of the norm. My question is why are so many ppl purchasing the 2.4 mac book when they very well could have a base level mac book pro. Also I know the internal components of both units however the Mac Book Pro has two graphic cards, what would be the purpose of two? Not trying to be rude or sarcastic but I thought one card was good enough? Is it similiar to a Mercedes S600 that thats a V12 but only 8 cylinders are used unless you really push the thing harder and faster? Just trying to figure out other than the cometics whats the difference between the machines?