Apple knows it will sell on looks alone.

So the hardware looks very good (maybe the best looking laptops in the world?). The screen looks very good (high res + great color). The keyboard looks great and some may even say that a hockey puck as mouse looks great.

This is what sells.

I also think that Apple never intended to serve the pro market. They tried some times but brands like Microsoft, HP, Dell and Siemens are still too strong.