Torrents don't really work for music. Soulseek is your friend there, super old-school but great community and it has basically everything.
I also buy almost everything I find on Bandcamp. Excepting those über-hipster techno artists with 100-copies vinyl-only releases (but those you can usually still find rips on Soulseek.)
Before there even was Bandcamp, there was Oink's Pink Palace [0], not only one of the best sources for music (NiN's Trent Reznor was a member & user of the site), some (lesser known) artists even released music exclusively on OiNK.
To add to your comment is the interview of Trent Reznor and Saul Williams from 2007 [1].
Begin excerpt from said interview:
What do you think about OiNK being shut down?
Trent: I'll admit I had an account there and frequented it quite often. At the end of the day, what made OiNK a great place was that it was like the world's greatest record store. Pretty much anything you could ever imagine, it was there, and it was there in the format you wanted.
If OiNK cost anything, I would certainly have paid, but there isn't the equivalent of that in the retail space right now. iTunes kind of feels like Sam Goody to me. I don't feel cool when I go there. I'm tired of seeing John Mayer's face pop up. I feel like I'm being hustled when I visit there, and I don't think their product is that great. DRM, low bit rate, etc.
Amazon has potential, but none of them get around the issue of pre-release leaks. And that's what's such a difficult puzzle at the moment. If your favorite band in the world has a leaked record out, do you listen to it or do you not listen to it?
People on those boards, they're grateful for the person that uploaded it — they're the hero. They're not stealing it because they're going to make money off of it; they're stealing it because they love the band. I'm not saying that I think OiNK is morally correct, but I do know that it existed because it filled a void of what people want.
Cease excerpt from said interview.
Flash forward 11 years and there still isn't a legal alternative to OiNK' Pink Palace (OPP) that can hold a candle to it. I love music, but the music that I love I can not find on any streaming service.
The bands I like are old enough that they are no longer touring or producing music and since I can not find any of their "old" songs on any (legal) streaming or downloading sites I am left with zero options to support the bands I personally like.
I also buy almost everything I find on Bandcamp. Excepting those über-hipster techno artists with 100-copies vinyl-only releases (but those you can usually still find rips on Soulseek.)