Ha Ha Ha. Yes we also could be Tape-billionaires.
By the way, i also own my old mixtapes on the legendary MAXELL XL-II tapes for a lot of parties in my youth. And i also have my first car-stereo-system, a now vintage ALPINE Car-stereo-system from 1993.
To Pavel: No there is no Mark signature on that crazy tape.
To dusty: Yes you are right. Some vintage tapedecks have a renaissance today to some vintage hi-fi-collectionists. Brands like: Nakamichi, AKAI, Piioneer, Studer-Revox and so on are interesting in our days.
But back to Tape-topic: Nobody will buy that. Never ever, and not in 100 years. And what about the sound-quality by those near 40 years old tapes ??