I don't think copyright is currently serving it's purpose "To promote the Progress of Science and useful Arts". And it should be eliminated anywhere it is not doing that.

Closest to my pocketbook is software (I'm a programmer), and I think we'd almost certainly be better off without copyright of any kind on software. It would mean exercise of some of our freedom around software would have to be implemented via reverse engineering, but it would make that route much more available / less risky for software that is current not Free Software. But, maybe I'm extra jaded because software is almost always done as "work-for-hire" so the author doesn't actually hold the copyright, the Capitalist employer does.