It's more about using it for backup. I assume you have that all backed up in the cloud somewhere?
I've never paid for it. I still have the 5GB free. I have only use 1.3GB of that space since 2007. I use it just for email. All my pics are stored on my phone. I have 1,434 pictures, 235 music videos and 10,035 songs on my 6S+ with 10GB free. Not worried about space.