Music is very important to me. So important that I never dared to trust streaming services. Not only do they require an internet connection (something that is not always available), but if the service experiences downtime, license changes, etc., that music is not available.
If I'm going to spend my money on music, I'm going to spend it on music in a form that isn't reliant on the ongoing operation of some service somewhere. I want to add it to my collection so I can actually listen to it anytime and anywhere.