Here's Elvis Costello's stupid list of 500 LPs (from Vanity Fair):

http://www.elvis-costello.com/homepage/articles/t-z/vanity_fair.001101a.html

He broke all of the rules we set for ourselves (includes jazz, classical, soundtracks).
I own a paltry 38 out of 500 (7.6%) but in my defense, I don't currently own any Elvis Costello.