In response to the question that I got today from a reporter at Computer Reseller News asked the question: "How might [Apple] be more strongly affected by the financial crisis than other PC makers, simply by virtue of the higher price tag of Macs?"
My answer:

When I getting my degree as an aerospace engineer, I saw that in most large engineering projects - airplanes, spacecraft, and satellites - this complexity could be easily observed, but many times it was impossible to control until you had a complete grasp of how everything worked together.