Is Airplay Successful?

I'm not sure if this is the right place to post this as this is supposed to be a response to the last vergecast. If it isn't, I apologize.

On the last Vergecast, in the conversation leading up to Chromecast, Nilay talked about how everyone was chasing Airplay, implying that is was a success, while WiDi and Miracast were failures.

I'm not denying that Airplay is really good. I think all of those above technologies were really great. I'm just taking issue with the insinuation that Airplay is some success that everyone is chasing after.

After all, if I look at my circle of family and friends, no one uses Airplay even though many of them have Apple devices and it seems that the NPD group has confirmed that to be the same elsewhere.