I buy stuff I know I will like, especially if I want to support the band. For new music though I will download something to try them out. If I like it enough, Ill buy it, if its only ok, ill keep it saved, but nothing more will come of it. The past few months I found a wonderful wonderful band called Between the Buried and Me, I checked out some videos on Youtube to scope them, and couldn't make my mind up on them, so I downloaded some of there Cd's and fell in love. What happened next? Well I walk into my local cd store and find one of the cds I fell in love with for 10 euro. I bought it without hesistating because I knew how good it was. I have fuck all money but I knew this was worth it. Hence why I bought it.
I have no problem paying for cds I know are awesome. My room is full of cds to prove that. But downloading 'illegally' isn't all bad too. It exposes smaller bands and while they might not make that much money, they do make fans which is way more valuable.
I'm just a big music fan really. If I could buy every cd I would.