QotD: I'm A Completist

Do you own all the albums of any particular musical artist or group? Who?
Submitted by dutterman.

Oh boy, this is one hell of a question...especially since there are several ways to interpret it.  Do we count only studio albums, or are we supposed to include live albums as well?  How about remixes or EPs?  And then what about bands that have only released one album?  Surely they don't count.  And then what about bands you collect obsessively, but you won't buy any albums of theirs from a specific era?

For the purposes of this post, I'll define "all albums" as studio albums only (no singles, no EPs), and exclude artists that have only released one or two albums (which means that Blackfield, LCD Soundsystem, Gruff Rhys, and others would have to be excluded).

Here's the list:
Richard Ashcroft
Björk
Black Rebel Motorcycle Club
Kate Bush
Stephen Malkmus
Opeth
Pavement
Porcupine Tree
Radiohead
Super Furry Animals (okay, I don't have Hey Venus yet, but it just came out earlier this week and won't be released in the US until next year, so give me a few weeks to scrape up the cash for the vinyl...there's too many things coming out right now that I need)
The Verve
The White Stripes