Because the Black Keys deserve a fair cut from their music. And Spotify are horrible with not giving artists the money they deserve. Buy a physical release. Support them.
You might find some interesting information below from an article, about just how little artists even make from a normal standard CD / Digital sale of music today from a recording label.
Nice ! I guess you must have a positive suggestion for improvements.More ads on the Free service ? Raise the price of Premium perhaps ?
Are you speaking to me?