Fixed that for you.
For example - I have unlimited data. I don't want to take up space on my iPhone with songs I rarely listen to but might want to access. I don't want to have to "manage" my music on my iphone. IE - today I want to hear this album but tomorrow a different one. Why would I need to clutter up my iphone with songs only to keep removing them and adding them.
I'm not advocating for either services. I'm explaining why both options might be preferred. With streaming - you don't have to manage music. You have all your songs and you listen whenever/however you want without having to load and unload.
Again - both models have their +'s and -'s
Yeah, to each their own I guess. Swiping to the left and clicking delete on an album is pretty painless IMO