Is it worth it? I've read people say that the 0.2ghz increase is not, but is there really nothing else added to these new MBP versions other than 8GB being standard and the 0.2ghz boost?? nothing at all was upgraded within the computer? seems odd.. Anyway, I went wit hthe MBP 2.4ghz/8/256gb, hope I made the right decision because I feel the extra SSD space is worth way more than the 0.2ghz. Thoughts?