In 99% of cases I have seen, people pick their OS because it came preinstalled
Unreasonable? Depends on what you consider reasonable. Yes absolutely they would try to exploit the users, in which case we go back to piracy. Perhaps a better solution would be federated content providers with some sort of combined (reasonable) fee determined by the providers collectively. We get one system to subscribe to, and pay one fee.
My utopia would just be a single reasonable paid service that provided everything. I pirate because its simply more convenient than 20 subscriptions.
There should be an app or something for this…