I understand that sentiment, I fully do. But I also rarely use the Mac App Store (MAS) for getting applications, even though it is quite simple, but nowadays, there are still many other sources available for downloading software (directly from the developer for instance), and I still have not contracted any malware, but I also use common sense and the security steps outlined in the Malware FAQ. There is no harm in running ClamXAV, but Sophos and iAntiVirus and similar feces should be avoided, especially since they make your Mac more vulnerable (Sophos) or offer false claims and call trojans or scareware viruses, which they are not (iAntiVirus) or hog down on CPU resources.
But I also rarely switch files between Windows users and Mac users, thus I do not need software to protect others from getting malware (they should have that if they want).
Maybe one day, there is still a decade or so left in X, someone will be able to publish a real virus into the wild, but then again, which AV software will pick it up, as it has no knowledge of any previous encounters?
Of course there will always be hoax-software in the form of AV. I believe that was the purpose of this thread, to find a real and valid AV that is not a hoax/bloatware. I also only download directly from the developer in 99% of the cases. But even in those cases, having an AV to scan a file before installing/opening/playing/using would ease my mind a lot.
Regarding your last paragraph, that is quite a weird statement. Of course there will always be a blackspot when a virus is new and the AV-companies haven't put out an update for it yet. But does that mean that you shouldn't get an AV, is that what you're saying? Because the AV's won't be able to protect you from future threats? I still prefer to have an AV but have yet to find a good option for Mac, one that is effective(obviously) and one that doesn't hog down your system