This website contains age-restricted materials including nudity and explicit depictions of sexual activity.
By entering, you affirm that you are at least 18 years of age or the age of majority in the jurisdiction you are accessing the website from and you consent to viewing sexually explicit content.
I think you can use iTunes as a catch all for sales of digital files, including bandcamp. As opposed to a physical disc or a subscription. FWIW I was just looking this up on the RIAA website and you can run reports by year or year over year comparing media options. It’s really interesting to see which year each format peaked. Eg 8track 1978, cassette 1989, CD 2000, digital file 2012. It doesn’t include limewire /napster (non-revenue) so the unit counts are a bit depressed. I wish it included pre-iPod mp3 players and blank CD sales.
https://www.riaa.com/u-s-sales-database/