Agreed. The above calculation for example does not account for the fact that Spotify pricing varies significantly between countries and can be as little as 1.60

Agreed. The above calculation for example does not account for the fact that Spotify pricing varies significantly between countries and can be as little as 1.60$ per month. https://edm.com/industry/spotify-premium-prices-by-country https://edm.com/industry/spotify-premium-prices-by-country