Streaming in general is great. Streaming services are a mixed bag of results, but overall our options are excellent at this point in time. You can have streaming services with no contract, pay for one month and abandon it if you don't like it. There are also numerous FREE streaming services with lots of great content.
It's important to understand the above in the context of how it used to be before Streaming was an option. There was basically only the option to have a cable or satellite TV on contract, or use OTA antenna TV, or watch everything on disc / tape. So yeah I think streaming is great.
Having said all that, I buy anything I want to keep perpetually on disc. 4k Blu-ray for movies and CDs for music (I bought 3 albums on CD over the last couple weeks). Games don't fit on discs anymore so I try to get stuff on GOG when it works out.