I disagree with you that the retina MBP makes more financial sense. It looks like you bought a near-maxed out standard MBP and then upgraded it with expensive components on top of that. The power of the standard MBP is that you can buy it with minimum specifications and then upgrade it later, either when you see a good sale, prices have dropped, or worst-case scenario, when you absolutely need it. Case in point, I bought my MBP with the minimum specifications available (4 GB 1300 MHz RAM, 500 GB 5400 RPM hard drive). RAM upgrade to 16 GB and a faster clock rate (1600 MHz) for just under $70 USD (it's even cheaper now), and I'm close to upgrading the hard drive to a 500 GB SSD for $270 USD (and if I keep on waiting, that price will continue to drop - some sales have taken it very close to the $250 price range). That's well under $400 for those upgrades, which would have cost me much more if it had come from Apple. But the benefits don't end there, as I'd have the option of going to 32 GB of RAM (if it ever comes out in DDR3 and if I really need it), and I'd still be able to upgrade the SSD later on.
I don't mean to say that it makes more financial sense, it just that it does cost more to upgrade depending with the model that you buy. The cmbp that I bought was more expensive because I choose the one with the 1 G video card and the hd mate screen. Had I known that later on I was going to buy upgrades I would have included it in the first place. I don't regret my choice, connectivity would have been an issue and the glossy screen just doesn't do it for me. Besides, when I'm at home (witch happens to be my office) it is plugged into my 27 inches iMac as an external monitor. I know that the retina display is supposed to be better than the iMac or TB display but I honestly couldn't see much difference.
The only thing missing on the cmbp is an HDMI port, I know that you can use adapters but I just don't like to carry adapters, besides, the machine is already expensive as it is there is no need to add to the bill. I barely use the dvd drive but I am glad to have it just in case.