So let me clarify that my general take on the state of programming languages today is that they are all pretty terrible and we don't have a good track record of fixing known flaws with them. With tend to just live with them. Given that, most new languages offer a shining chance at progress toward something better. They indicate someone is thinking about the problem and trying to help. Thus by default I like new programming languages per say. But yes, each does add to the total body of stuff out there, which has a cost.