My experience with "the law of demising returns" is that its an abstraction at best, with no basis in reality. One simply cannot say that more money buys less incremental improvement, for the simple fact that we all know of components that cost less but sound better. In all those cases not only does spending more get you a bigger return, even spending less will too! Its just one of those loopy fantasies people won't let die. For what reason I haven't the foggiest. They should. But they don't. Oh well.
