Absolutely! I should have mentioned in another post above, that having more high end, sensitive and analytical gear will allow you unleash the major sonic differences where a glaring statement of 'night and day' is very alive and true. Their is NOTHING subjective about it. I'm glad to hear
you've proven those differences for yourself.
Even on my more modest pairing ( ak jr with either sony MDR z7's and the blue Mofi headphones, I can STILL hear and feel the differences in SQ. 320kps bit rate has nothing on a 780kps and above bit rate. It's like someone saying that there is no difference between cd quality and studio master quality.
Also, I would NEVER make bogus and outlandish claims about audio on here! I really respect this site and the people. I would never steer anyone in the wrong direction. My experiences are very real and truthful.
If one isn't getting the differences then I do have to question the person's audio gear they are using.
However, most on here are very savvy and a headphone like the HD 800 S is a great freakin start to unleash the full potential of your sources.