Because my daughter wanted one for college. If I had been smart, I would have waited until she started to take graphic design classes before I bought it. But she has a mother.....
We pay $2500 for our Macs at work to do software development.
http://www.amazon.com/Apple-MacBook-ME294LL-15-4-Inch-Display/dp/B0096VD85I
Graphic Design?
Had to get my daughter one for College Graphic Design also.