You want to know hos I avoid that disease BTW? I only collect the good stuff. I mean, does anybody (except ukiro ) want some 1997-release by Mr Joe Bob where his has synths farting and he keeps banging his bathroom sink?
I don't. So basically, when I have all good stuff from an artist, I consider that part of my collection complete. (thus, I will IMO have a complete Posford collection after I get Dub Trees & Younger Brother).
And I can't be bothered to buy vinyl either. It's too... what do you say? Too... I just don't.
(and as the previous poster said, if you obsessive-compulsive collectors realize how much unreleased stuff labels have... you'll get some obsessive heart-attacks.)