I have a 15" MBP w/ Intel Core 2 Duo 2.8GHz, Geforce 9400 256MB, 8GB Ram 500GB mid 2009 model. Ever since my FIL got the retina display 15" MBP, I've been wanting to upgrade. I think that was over a year ago already. However, this MBP is still running as good as when I got it on day 1. Anyone else having issues justifying upgrading their MBP to a new model?