Old geezer here: Does anyone know how often the songs on a CD are played? If I spent $10 on a CD, what was that likely to generate per-play? (I'm old enough that I remember taping LPs and then listening to the tapes -- which was a near-universal practice amongst the folks I knew.) My guess is that great albums got listened to a lot -- driving down the revenue "per play" but generating great word of mouth and lots of…
Assuming 12 songs on a CD, and that each CD costs $2 to print, distribute, and account for merchant margins, that gives us effectively $0.66666 per song. At the rate of $0.00786 per play on spotify, you'd have to play each song on your physical CD 84 times (or 1018 plays across varied tracks) before it produced less revenue for the artist than a play on spotify.
I'm guestimating here, but I'd say that in general artists/record companies benefit more from CD sales based on those numbers.