Yeah, copyright as applied now is not perfect. I especially don't like that, at least in the U.S., copyright has become a sort of open-ended, in terms of duration, protection. This is extending it beyond its valid purpose to encourage the creative work by assuring that the creator will retain control of the work and receive just compensation for his creativity and effort.

However, for now it is the best thing we have go to attempt to provide this protection. I also see only parallels between copyright and patents for inventions.