My guess is this is more a consequences of many prices in the economy exhibiting "rocket and feather" [0] behavior: quick to rise, slow to fall.

0: https://en.wikipedia.org/wiki/Asymmetric_price_transmission

because that's boring to report on. Effectively anything that has been digitized has practically collapsed in price. Newspaper, books, movies, music, and so on. Ask your dad what he paid for records compared to your Spotify subscription.

You dont own anything on Spotify, and the songs can be removed at any time. You can also be removed at any time.

Ownership and records are still just as expensive today. Renting is just a new option

Not really the point of this post I'm aware, but "Downtify"

https://github.com/Igglybuff/awesome-piracy#spotify

See: the price of gas at the pump. The one exception that lead to a mild reduction was shutting down the entire world, everything else is explained by this perfect linkage between crude increasing a few penny on the barrel leading to an increase at the station.