I am on year 3 of my 15-inch, 2.53GHz, Mid 2009 macbook pro. The video card is showing its age. Its fans run when I try to watch Netflix. But when looking at the new 15", I only really see an upgrade to the processor and video card. Will the system be noticeably faster? Or would you wait until the 2009 model poops out before going to the next model? Thanks!