Because the eight-track was a stupid technology. I remember exactly when I realized this. I was in a car listening to someone’s Beatles Again/Hey Jude 8-track. The song “Rain” came on, and IN THE MIDDLE OF THE SONG, it did that weird grinding noise in the middle of it. I should note that “Rain” is a three-minute song.
I think I decided this about three seconds after I had one jam on me, opened it up to see what I could do about it, and discovered that this mechanism couldn’t possibly work.
Lots of that particular title out there; I didn’t have one, but then I already had the LP. At the other extreme, 1982’s 20 Greatest Hits by the Beatles, which Capitol scrapped right before release: the number of copies which managed to escape the label is believed to be in single digits, and only four have ever been seen.
My last-ever 8-track tape was Janis Ian’s For All the Seasons of Your Mind (1967), the second of her four albums for Verve/Forecast, featuring the slightly bitter tune “Shady Acres,” which remains a favorite.