Just something I'm wondering about: In noise and related genres, more so than in others, although it happens there as well, quite some acts release a lot of stuff, in the form of tapes, 7", 12", CD, CDr... I think of Merzbow and Torturing Nurse, for example, who have released a lot of stuff.
I guess there probably are some people who collect everything from artists like those, but I guess most people just have part of it? I mean, there's so much good music (according to me, at least), that I can't really imagine buying more than 100 releases of the same artist and letting all other good music pass by.
To conclude: there are some (basically) Metal bands from whom I buy every new release, which is fairly easy since most of the time it's 1 album and 1 7" per year for example. But I'd have a hard time buying everything from a band that releases 2 7"s, 2 albums and 4 tapes in the same year, just to say something.
Some other peoples ideas on this?