I don’t listen to a lot of music since I listen to podcasts while in transit and at the gym. I augment my music collection with free Spotify a little but would feel locked in to one provider if I didn’t own anything. The prospect of finding and rating what I like again would keep me with one provider, even if another’s price, content, or features were enticing.
I worry about that so I never buy anything that’s not transferable in the first place. I can count on one hand the number of paid apps I’ve bought in the Mac and iOS app stores combined.