We traded one convenience for others. I can play the same music in sync across every room in the house and the backyard, and I didn't have to run speaker wires

We traded one convenience for others. I can play the same music in sync across every room in the house and the backyard, and I didn't have to run speaker wires to 23 locations to do that. I can play any of millions of songs without having a room full of physical copies of the music. I can plug in an aux cord into the system if I need to do so.