I don't ever listen to cover versions. In my opinion, Pink Floyd covers are usually horrible as the music can never be truly covered. Pink Floyd used instruments most bands don't ever think of using. To sum it up, when I listen to music, it's gotta be the original song from the original album (occasionally I will listen to a greatest hits album).
It's interesting how, in a few generations, popular music went from focusing on the actual song to the artist performing the song. The "standards" of, say, 1930-1955, were very rarely written with specific artists in mind, so most of the best-known songs of that time have versions by most of the best-known artists of that time, each with their own interpretation, none of which lose the integrity of the lyric, tune or harmonic and/or rhythmic structure. Many artists even recorded multiple interpretations of the same song during their careers.
Once the artists by and large started writing their own material, it became much more rare for songs to be successfully covered by other artists - the song is immediately and inexorably tied into the band or singer who first released it (or at the least, had the first big hit with it).
I think at least part of it is, consciously or not, bands write songs that play to their own strengths as performers, rather than trying to write a song that can stand up to multiple interpretations by multiple artists.
So in the example above, for the listener, Pink Floyd (whom I like FWIW) songs are as much about the
production of the song (instrumentation, engineering, etc) as the
writing of the song itself (lyric, melody, harmony). Without the original production, the song doesn't resonate the same way. As I mentioned above, I'm the same way - using Beatles covers as an example, and I think they were excellent songwriters, but for whatever reason, without their voices or instrumentation, it doesn't feel the same. Yet, I can think of three versions of "I've Got You Under My Skin" - with radically different feels, and I like them all, because I like the
song.
Not saying it's bad or good, it's just a different way of approaching the craft.