1) I'm paying for a formal education, not the books and the audio of the lectures. Those are often available for free, but the formal seal of approval of a university (not the sheepskin + ink) has market value.
2) I pay for The New Yorker, not the pages it's printed on.
3) A startup pays its programmers for software, which is really just ideas.
4) A company pays for the design of its building, not the drafting paper and pencils.
5) A company pays a manager (at least theoretically) for leadership, not for the transferring of ink to post-it-notes and calendars.
6) Millions of people pay for iPhone apps, which are not physical goods.
7) I'm paying (through insurance) for medical advice, not the negligible fraction of square footage I occupy while sitting in my doctor's office.
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Buying recordings is a voluntary transaction. If you don't find them valuable, don't participate. But you are still no more entitled to the sound of an artist's voice than your employer/customers are entitled to the value you provide.
Open Source is cool. Public broadcasting is awesome. Band Camp is amazing, and I agree the mainstream record label cartel is nasty. I hope we move away from it. But just as hating Walmart doesn't make shoplifting okay; disapproval of the music industry doesn't make piracy okay.
Yes, the witch-hunt is too much, but wherever did we get the idea that intellectual creation shouldn't be worth anything?