Take that $100 price drop and put it into 8 GB of RAM. You may not really need it now, but that day when you do and you can't upgrade it, ouch. I could probably get by on 128 GB of storage since I don't think I would plan on this being my primary computer. But I could always attach a TB external drive. I can't attach external RAM.
Alas, since I'm broke and can't really justify a new notebook with a Windows one that's working fine for the $250 it set me back, this is just eye candy. I also don't want to buy when I know retina models are in the pipe in the near future.