i got a lenovo y580 instead, for half the price of the retina macbook ($1279) i got the following
Intel i7 3630
15.6" 1920x1080 with 97% color gamut
16GB Corsair vengeance (upgraded)
512GB Samsung 840 Pro SSD (one of the fastest ssds you can buy)
256GB Samsung mSATA (for OS)
Bluray burner (optional HDD bracket option for tripple SSDs)
nVidia GTX660M 2GB ram
Intel 6205 2x2 AGN (but this laptop allows me to upgrade to any wifi card i want, so once intel comes out with an AC card i can just upgrade it for not much more than $20, i dont have to buy a whole new laptop)
i just dont see the point of buying something twice the price with half the speed and half the connectivity.