Just passed 2,000. All catalogued as I acquire them. Keeping track of press order, country of origin, artist's discography order, condition of record if less than NM, their estimated value, quality of sound, EQR for exceptional quality recording or QR for a step below. Also notes about what side or part of album is best or specific remarks, i.e. LW for loudness war. All these things make picking up something to play so much easier. And I totally love doing the catalog. It's my hobby, I am fully retired. I have the time. Never could do it while I worked.