Many of the titles that were released in the "original" media , never (yet) have been rereleased on digital and may never be. These media have limited number of plays. CD-4 seems especially susceptible to groove wear. (I was watching a Great Courses DVD about the Beatles which I picked up, and the lecturer from University of Indianna stated that as a young fellow he wore out his copy of Revolver. I used to use my stereo a lot but never have really damaged a vinyle disc very much. But I was a very early adapter of the AR-XA turntable and a good Shure cartridge ) Tape also does deteriorate with both time and playings so it is good to preserve them. (I admit a selfish motivation. At this late stage I am not going to start collecting the original formats, only files where I can get my feeelthy paws on them)
I find it interesting that some folks get very up in arms about file sharing digitally. I don't recall anyone back in the day saying "You shouldn't make a cassette copy of an LP because you are screwing the artists." I didn't do any of that but my best stereo buddy loved the cassette format. He copied many of my records, and then would play the cassettes for me without telling me to see if I noticed. I never did. He got a laugh out of that.
I find it interesting that some folks get very up in arms about file sharing digitally. I don't recall anyone back in the day saying "You shouldn't make a cassette copy of an LP because you are screwing the artists." I didn't do any of that but my best stereo buddy loved the cassette format. He copied many of my records, and then would play the cassettes for me without telling me to see if I noticed. I never did. He got a laugh out of that.