Nope, you can have perfectly fine fun in those games without having an ultra rare skin. Their are prestige objects and I think thats a good reason to not use them as counter arguments. Domain names are a way better example that people can understand better. Whats amazon.com worth? Its just virtual. Furthermore, your name is just virtual or information, is it worthless to you? Would you be fine if I just named you Rumpelstiltskin from now on? Non-physical objects have (personal) value and there is no reason why there should be an upper bound unless it has a physical form.