I don't understand. To me, the change in physical sales appears to be asymptotically approaching 0. Why assume it suddenly goes positive and then use that guess to make Spotify look deceptive?
>Spotify is playing a little fast and loose here, though. A Spotify Premium user isn't the average music fan. Only 25% of Spotify's active user base pays for the Premium service. .. A fairer comparison might have been the average U.S. citizen against the average Spotify user, since both include people not really paying for music.
No, they're not. They're comparing paying Spotify customers to US paying listeners. If you think comparing nonpaying to nonpaying is reasonable, paying to paying should be reasonable too.
>In a year, Spotify makes about $14.67 per advertising-supported user [2], but those folks if considered just typical Americans would spend $25 on average [3]. That's just over $10 per year lost for each cannibalized person.
Why assume those people aren't buying music also?