The pre-war british doublerifles will always hold their value because they have all the important factors such as a name, quality ,history + caliber in one package. A new Heym, american "rigby" will only have value as a users workingtool...but good tools indeed. I am sure if the London Rigby, duplicate pre-historic doublerifles in a modern package with the high quality one do expect with the "Rigbyname" on it, and with the right architechture(looks), they could end up with being a good investment + being a good gun too.