Well, I was more arguing against subscription-based services than for CDs.

As a matter of fact, I don't really like CDs and I don't have anything reading them at home. I like my local playlist that I can play offline and randomly. CDs are per album, and I often get bored really fast when listening to the same kind of music for more than a few minutes in a row. I also don't like CDs for the physical place they take and yes, the plastic they require.

I just plug in a jack and here you go. That seems far less wasteful than buying a Chromecast or an AirPlay adapter and streaming all day (from the Internet and/or to the adapter).

A Chromecast. Talk about a waste of plastic and resources. Hundreds of CDs probably don't come even close.

Chromecast with Google TV is the best streaming device I've ever used, and I've tried a whole landfill worth of alternatives.