I am the same way with literature, if I find an author I like I tend to read all of their works. In this case I tend to have a great deal of music in order by specific artists as well as those from the same time periods. Mostly 1960’s, and 1970’s rock,folk, blues, and jazz but the collection extends to 2010 and later with fewer items added lately. I added a large group of classical CD’s a couple years ago and kept all of my favorites. You kind of know about vinyl I have arriving starting today.
Some of my collection is from the 30’s, 40’s, and 50’s but there is much less of that. I nearly had 5,000 Jazz CD’s but the seller backed out of the sale and EBay would only stop him from listing again.
Most all are vinyl, tape, or lossless but I do have MP3’s I might use as background music for outdoor parties. Few are listening much then anyway and I stopped using more serious gear for that purpose.