I have used Chromecast almost daily since it became available, but I would not have gone out and bought a new $1000 TV to get it.
Spotify Connect is a brilliant idea. But there needs to be an adaptor -- like the Chomecast stick -- so people can actually use it. The vast majority of Spotify users will not go out and buy a new receiver just so they can use it. And only a tiny sampling of receivers can use it anyway.
Has anyone heard of such an adaptor being released? Such a product would be an absolute home run!