I can only think of one situation in which I can try to 'justify' (I use that term very loosely here) my pirating.
It was a couple years ago when I was looking for Timeless Miracle's debut album. I was going to buy it, but it wasn't on eBay, and on Amazon the only copies they had were new and they were going for, I kid you not, about 79 USD. I absolutely refused to pay that much for a CD, plus shipping, especially for a band I had never heard before, so I pirated it. And even that was a pain in the ass, because nobody even had the album for download.
And yet I do know it was wrong because I stole the album. But that's the only situation in which I will try to defend it a little... I just went and checked Amazon for the album, and they finally got new copies, so it's only 30 USD... I'll consider it. I think the most I've ever paid for a CD was 40 and 45 each for both of Aquaria's albums, the Japanese versions with the bonus tracks. Well worth the money, but... I really don't know how willing I am to pay *that* much for a CD again, even an import. 30 for Power Quest is even pushing it, but I'm getting it because I love PQ.