In an effort to stem the high prices of its laptop line, Apple announced overhauled MacBool Pro models. The series received the most immediately noticeable upgrade in a return to a smaller form factor which has long been overdue. The 12 inch PowerBook replacement received these updates over its prior incarnation as a mere MacBook: a MacBook Pro quality screen, the reintroduction of a FireWire port and an SD card port. However, the 15-inch model was made redundant. Unless you need the speakers and the larger screen, there is no reason to opt for the more expensive middling model.