There used to be CD stores and every major outlet had some assortment of CDs. Then they all went online and you could order CDs from all sorts of quant and off colour websites. But that's all gone now, or have escaped me. How do people get there CDs today?
The public library.
I get that digital collections may be beyond the scope of this place but i have been archiving a lot of discs since i became aware of content disappearing.
I collect CDs for the same reason - no one can revoke my right to stream my own music in full quality.