Yep. The 1s become straighter when you go above $100, while it only takes approximatley $90 for the 0s to become rounder...
Remember it's a digital cable. So, because you truly believe that these cables are changing the 1s and 0s into something better, then it's your preception that is changed by spending more money.
These are voltage representations of 1s and 0s. If they could be made better don't you think your components would do that rather than having a cable make the change? And, the HDMI signal is encrypted which would mean the cable would have to re-encrypt the better signal.
If you are getting errors, then those would show up on the screen as sparkles, lines, screens of a solid color or no picture. Noise produced errors would not line up in such a way to make a coherent image that is dimmer or less sharp or less colorful. Noise produces random errors not a coherent image. This is particularly true with an uncompressed image, which is what is sent down the HDMI cable. Change one pixel and the next pixel is unaffected, assuming that you still pass the encryption tests.
Someone earlier mentioned that the digital signal is really an analog wave. What they failed to mention is that a digital 1 is represented by a range of voltages (not a single voltage) and a digital 0 is represented by a range of voltages (not just 0 Volts). So, even if you had a fluctuation in voltages, the 1s and 0s are still the same. If you break the voltage threshholds then you get errors and again those show up on the screen. Also remember that the video and audio portion of the HDMI signal has no error correction.
So, I'm sure you think you are seeing something but the physics of a digital signal make it impossible. However, it's your money so if it is making you happier then more power to you. Just don't want someone else spend a lot more money and think they will see an improvement.
The mind's perception is interesting. I was reading an article about testing audio interconnects. It was pointed out that changes in air pressure change how your ear responds to audio. So, changing an audio interconnect and having the air pressure change at the same time will result in a perception that the interconnect made a difference when it was actually the air that changed the sound. The same thing should apply to your eyes. I've seen ballplayers open their eyes further to get more light in and to see clearer before a pitch. Same thing is true when comparing video.
Edited by alk3997 - 9/20/13 at 1:37pm