I threw out all my 8 tracks 25 years ago. 8 tracks are hissy and become warbly with age when the capstan can no longer pull the tape at a constant speed. The sound quality is much worse than cassette tapes. You really are not missing anything but perhaps some ear pain.
Socialism - Let me tell you how it will be
There's one for you, nineteen for me
Should five per cent appear too small
Be thankful I don't take it all