It is not streaming versus buying media.

If you watch YouTube videos about streaming media services, often you'll hear about how they are the vain of media content because users don't own the media on the service. It is true, users are renting the content, and the owners of the service can take away any media they want. They even can take any account they want at any time with no warning, and by any reason they have.

Some argue that people should buy the media they consume, being music, movies, or whichever they consume. A bit drastic, and is something that not everyone can do because of the expense and might not even want to do it.

For me, I see streaming media and buying it as complementary. Both are valid ways to discover and consume your favorite media. 

While I've no doubt there a people who only buy their media, while others only use streaming services, I see most people somewhere in between. Buying the media they love the most, while using streaming services when is more practical for them to do.

For me, buying books, CDs, DVDs, or MP3s, is something I do for the media I like the most. The media I want to have access at home without having to connect to the Internet.

While Spotify, Netflix, and YouTube I use when I want to listen or watch new content or content I like but not enough to buy a copy of it.

The plus for me, is that in both ways the creators get pay. There is another debate if the amount they get is fair. There is also the question of restrictions based on location of the user to the content.

Yet, I don't see one as being more valid than the other. At the end, it comes down to each person needs and wants.