This happened to me as well. The price difference between international market and Lahore market is 40K on an i7 model and easily 30K at an average on rest of the models. The other reason for this high premium is that Apple is kinna status symbol these days.
PakWheels is a not the best site when it comes to computers. Try your luck at other sites or settle for some HP/Dell or Acer (like me :().
I suggest get hold of some friend in US and get it from there. You will find a very good buy rather than lookin' for one here.