So, do you guys think there would be huge difference between the 2.6 CPU on 15 inch rMBP and 2.9? I currently have 2012 I7 2.7 rMBP, which was the highest option at the time. I bought this specifically because it had more L3 Cache (8 mb). But I've notice that the recent rMBPs CPU options have no difference in cache and the only difference is the frequency... If the price didn't go beyond 3000 mark, I'd probably maxed it.. but it kinda went out of my reach ... What do you guys think? Worth the $300? or Nah?