So what you're saying is that I must accept the most expensive laptop on the market, made by the world's wealthiest company, to perform worse than previous and cheaper models.
Got it.
Quicktime is not free. Its cost is built into the product. Using your logic, everything that came with my laptop is free, and all I bought was a physical casing with hardware stuck to it, thus making all my expectations unrealistic.
Do Apple employees not work on rMBPs? Do they not bother recording their desktop with Quicktime just to see how it works?
My expectations, in fact, are absolutely realistic.
I realize you're upset and frustrated. But you need to give it a few days, then try to understand how difficult it is to push the bleeding edge.
Normal MacBook Pro
1440x900 = 1,296,000 pixels
Retina MacBook Pro
2880x1800= 5,184,000 pixels
That is a lot of extra pixels. That's 4 times as many pixels.
Have you ever seen a video card or processor that is 400% more powerful than the previous version? Last I seen, many times they range between 10-30% more powerful.
That's a far cry from 400%.
Apple is pushing limits and boundaries with the Retina MacBook Pro. It will get better as video cards become more powerful for laptops. But Apple doesn't make those, that's nVidia and ATI that are in control of that.
So, if you want to complain, perhaps you should complain about them.
QuickTime is free. Just look at how often it gets updates, it's only there because it powers the video related parts of OS X, including iTunes.
You can argue all you want. But you need to look into the technical reasons why you're having trouble. Then it really doesn't seem so realistic to expect the same performance as the normal macbook pro. The retina display is a trade off in some ways. Performance is one of them. You trade performance for a great looking display.
You can trade the great looking display for faster performance by going to a normal macbook pro.