Yes, I have and still do. Which? Too many to list. CD. DVD. Didn't in vinyl days but there are many vinyls I have I'd pay for the whole thing to be digital for just one song (if not otherwise findable).

Why? If I want to learn a song and can't find it otherwise. Used if possible unless by an artist who is a member of an ethnic group far more oppressed than I.

Other Whys (cd, dvd) might be if I hope to learn more about a person very different from me or others I love, and it's one of their very favorite songs/films. Or if I want to use it from my library in working with folks in various settings. Or if I want to donate the cd/dvd after enjoying it....

~Susan