I do love the spirited debates that take place on this forum. It sounds like Audixium and Gary have discussed this topic enough and reached a consensus.
I would like to add the following. While I agree that audio and video quality can be quite subjective and ultimately is in the eye of the listener / viewer, I do feel that those of us who have some experience in such, have an obligation to spread the word to others. Just because something sounds or looks better to a particular person, doesn't mean that it wouldn't sound or look even better - all they may need is someone to show them the light (or sound). Besides, we are all here to learn - at least I hope we are.
Take video for example. Using DVE, I have calibrated not only my own televisions, but also many televisions of my friends. Nearly every time, I hear the same thing, "it looks too dark," the colors are too washed out," etc. I always tell them to give it a couple weeks and they will begin to understand. In nearly every case, they do. More importantly, they come to realize that with their over-bright settings, horrible contrast, and blooming colors, they actually missed out on precious details in the picture. It actually improves their experience.
The same goes for audio. Some may love to hear the thunderous bass so many are accustomed to in their theaters and cars; but that is not necessarily how the artist intended it to sound. By overpowering the sounds with bass, again, they may miss out on the subtleties of the music.
After all, Chris and others at Audyssey have been doing this for a long time, and are so much better at hearing correct sound than all of us. Why would we at least not heed their recommendations and give it a try - at least for a while? If after a couple of weeks, we don't hear the difference, then by all means, we should go back to our preferred settings.
Just my thoughts.