"Back in the day, there was a surcharge on CDs"
Which meant those not using them to copy music were subsidising companies for something they weren't doing.
AND that those who were copying music were effectively paying a license to copy as much as they wanted.
The age old question still applies: Have I bought the media, in which case I can do what I like with it, or have I bought a license, in which case I can listen to it on any media I see fit?