They used it because it made content consumption possible. They did anything they could to get the content. There were all kinds of barriers: cables to connect

They used it because it made content consumption possible. They did anything they could to get the content. There were all kinds of barriers: cables to connect your stereo (everyone did this), CD burning, file management, media players, corrupt files, bad connections, port forwarding details; the truth is it wasn't a great experience, it was simply possible for the vast majority of people to execute, and that was good enough.