So, I'm looking into upgrading to a new rMPB. I've been following the eGPU development for awhile and it seems to be maturing into something quite useful! I also saw that you'd be better of going with simply Iris rather than the GT 750M dGPU. I would be interested in buying a eGPU in the future if the prices come down a bit, but otherwise I think it's too steep, which puts me in a dilemma. Should I get the high end model with the GT 750M or stick with the base model with upgraded ram and hdd? As you know the price is almost the same if you go that route, but you "miss out" on the dGPU. What's the penalty of going with dGPU if you're opting for eGPU in the future? What would you do?