I am thinking about maybe selling my old cMBP and buying a new rMBP. As far as I know, there isn't really any reason for me to buy a new one when I could get a comparable refurb for $600 less. I'm looking at the June 2012 model, 2.6ghz, 16gb ram, 512gb ssd. Since the 750m is really just a rebranded 650m and I'm not concerned about battery life, is there any reason not to get this?