i'm not even gonna try... most of my vinyl is old death metal stuff independently released as like, demos or self-financed singles 'n stuff. Super rare, commanding big bucks on ebay (like $50 for a 7"... old Incantation, Absu shit).
I think the most I ever paid for a vinyl so far was around $110 for a copy of Krisiun's demo/comp "Unmerciful Order" from Brazil. It only existed as a self-financed cd, and the chance to hear it on vinyl was just.... ughhhh yesss.
Close 2nd is Immolation's "Dawn of Possession" debut, which was about 80-90