Hello everyone, My first Mac was a late 2007 white MacBook, which is still hanging in there but I'm looking to upgrade very soon. I really like the idea of the rMB but can't help the thoughts that it's too underpowered and I'll be struggling in a few years. Having said that I'm sure most people wouldn't have though my MB would still be useful nearly 8 years later. So I was interested in what people thought about the position of rMB in apples line up. Power wise is it closer to the MB, or is that spot taken by 13" rMBP ?