- stop working if you drop streaming plans
- stop working if the streaming service goes out of business
- stop working if the streaming service decides they don't want to pay royalties to the artist
- stop working if the streaming service takes it out of the catalog that month
buying vinyl, CDs, and paper books means you own the material. it's not a unilaterally revokable, highly limited and one-sided right to use license.
copyright law and "fair use" are a complete mess these days.