Personally I buy all my music. But unlike video content, for various reasons for the genres of music I like, it's easy to buy MP3's they you get to download and keep. Over the years I've probably spent hundreds, maybe low thousands, of dollars on music downloads.

If I could buy video downloads, I'd spend a lot more money buying the shows I watch. But since you don't get to keep streaming downloads, I don't.

For the most part, books can't be bought as unrestricted EPUBs either. So again, I rarely buy ebooks. But sometimes you can, and on occasion I've bought they way.