Subjectivism – is there a defence?

I'm a subjectivist, I buy what I like the sound of and I don't care about anything else. But I also don't believe anything I can hear isn't measurable, and I don't believe home audio relies on anything that is not very well understood by science. I've also engaged in lots of blind tests in my time, which have confirmed to me that what I think I can hear when I know what I'm listening to, and what I can actually hear when just using my ears, are two different things.