I have to have every possible gadget yes, of course I've also gained a Chromecast stick to me not to have an Apple TV hanging on every TV. But in retrospect, I really wonder whether one needs at all. For playing Youtube videos really a fine thing ... I would say thanks to the low prices, it does not hurt to have the part on television and possibly even being able to access it. In addition, you can not really do what the computer so other than the mirroring of the Chrome browser.
So somehow beside the point, "things the world does not need" and anyway I do not want to do without it really.