Having no idea what a Chromecast is (other than it has something to do with Google Chrome), this tells me nothing. And if I have no idea, then I guarantee none of my extended family has even the first clue.
I have a Chromecast sitting at my house that we won in a contest, and we haven't bothered to pull it out of the box because nobody can tell me what it does beyond "Less functional AirPlay for Chrome."
Nobody can tell you it's an insanely simple network media interface?