> Being peer-to-peer it could be considered a spiritual successor to Napster.
Napster's popularity was not because of P2P or something else. The only reason Napster succeeded was convenience. Bittorrent cannot be the successor because it is not as convenient.
> In my case it's strictly a case of availability - I happily pay for Netflix, Amazon Prime and Spotify as well as whatever software I use.
Everyone pays now because it is convenient to pay at 2-3 places for all your needs. Once you have to start paying at a separate place for every different series/movie you want, you will stop paying. It is not only about availability. It is about availability AND convenience
And Steam is facing the same issues as Netflix with Epic Store and Origin breaking away because EA and Tim wanted more money.