Thats not really relevant unless you think it will significantly reduce high quality output, which i dont think it will. Copyright is a perversion of the free market as a trade off to incent fixed cost investment (i.e. creating content) in an industry with zero marginal cost (i.e distribution is so close to free it might as well be thought of as free). The goal should be to pervert the free market as little as possible because raising the distribution price above zero very clearly causes deadweight loss to society and the longer the copyright term the more tenuous the claim of increased productiin and venefit to society is relative to the large deadweight loss it causes.