since apple no longer allows upgrades of their machines and the parts they use inside are more or less bottom of the barrel (cheap ram, slow ssds, nics that dont support jumbo frames, some laptops dont even have lan anymore which is useless for large file transfers, no wifi AC until just now)
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.
I thought we got over the "spec war" years ago, and realized that people care about more than simple specs. The reality is, a lot of what you mentioned, the average consumer cares pretty much ZERO about.
But to play at your own game ...
I'm not sure what you're smoking, but Apple doesn't use bottom of the barrel parts.
Slow SSDs? Hardly. Especially with Apple pushing PCIe SSDs. I don't see any other companies doing this. The Macbook Air's new SSD is faster than your "fastest on the market" 840 Pro, pushing a delta of at least 200 MB on sequential reads and writes.
RAM? I think you're overestimating the importance here. By what metric are we measuring "cheap"? I've never had a problem with Apple's RAM (except its exhorbitant price of course -- but that's where Apple makes its profit). If you think you're being bottlenecked by RAM speed, honestly, you are probably just aren't. And 99.9% of users will never be bottlenecked by "slow" RAM. The capacity is much more important, and Apple offers plenty of that (at a premium price albeit."
If you want to talk about networking ...
Wired: First, most of Apple's target customers don't use or really need gig-E. Sorry if you do, but you're clearly not Apple's target customer. And if you really do, there's an adaptor for that. Probably inconvenient for you, but its great for everyone else -- we're no longer limited by the size of the ethernet connection, so laptops can be thinner and more portable than ever.
Wireless: Apple is one of the only companies that puts decent wireless in their laptops. They have been using 3x3:3 MIMO for years now. You'd be hard pressed to find that on hardly any windows laptops. From Jarred over at Anandtech: "Can you guess what the most common configuration is, even on more expensive laptops? If you said single-band 2.4GHz 1x1:1, give yourself a cookie."
Finally, hardly ANYONE cares about upgrading their wireless card. You might -- and that's great -- but if you're that into upgrading and DIY, you're clearly in the right market -- a PC.
Also, what you've failed to include in your "specs" are other factors -- keyboard quality, display quality (sorry, 1080p isn't "retina" for a laptop), trackpad quality ... and the biggest difference -- SOFTWARE.
Get real man.