All, I hate to spam this forum with more decision thread but I have a dilemma. This is going to be my first mac purchase. I just bought a new MBP: 2.6 / 512 / 16GB But looking at the refurbs...I notice that I can grab a refurb for ~600 less, which is not really chump change The specs are: 2.7 / 512 / 16GB Sure I know Haswell saves battery, but I heard that was more Mavericks than anything else. My questions are: 1) How much of a difference is there between the PCIe and the old Flash? 2) My main tasks in a day are running VM's, developing, and testing video (not encoding). Would there be any benefit in terms of the new MBP that could assist me in doing this? If so, is it even noticeable? 3) Anything that I am missing? I mean I don't care about TB2 (there are no accessories). How is the build quality of refurbished macs? Will I ever say...If I just got a new one, X wouldnt happen? Thanks all!