How many? I really do not know. They used to be in every room of the house except the bathrooms until my sweetie built me a 1000 sq. ft. “music room” for them, my equipment, the piano, and the HT (I am an INCREDIBLY lucky man). My sweetie says she is glad it is that instead of a boat or a girlfriend. I have 180 feet (about 55 m) of shelf space full. I teach a course on west coast jazz; 6979 of the jazz are catalogued, but the rock, R&B, classical, folk, comedy, experimental, electronic, etc. are not (yet). Yes, there is no country. My best guess: around 13,000. No, I was never a DJ. Except for about 3500 of the classical, I purchased all of them beginning about 1956. The 3500 were a gift from a nun who was retiring to, in her words, the old nuns’ home. Those were mostly vocal and there were only about a dozen duplicates with my existing collection. She used to teach voice and was working on her Ed.D. at age 81. She was the nun in the Canadian film “The Company of Strangers” [“Strangers in Good Company” in the US] who tried to repair the truck. I have not heard all of hers (yet). I have listened to all the others at least once. I listen to vinyl every day. It is what I do instead of Valium, Xanax, Prozac, Norco, THC, EtOH…or worse! I still buy new vinyl as well as cruise the used record stores wherever we travel. Lately it has been the Blue Note Tone Poet series. I know that we will have to downsize within the next few years, but I have no idea what I will do then. Perhaps the archives at the Conservatory of music at the local university may be interested?