Working for a major player in the WebRTC space certainly gives me a bias, but "noone cares" is pretty far from the truth. There are millions of WebRTC users already, hell, we might even be approaching the billion now if you count Snapchat and Hangouts as WebRTC services. (Yes, Snapchat uses WebRTC for their video chat features)
For some pure WebRTC experiences. http://simplewebrtc.com/ if you want to build something yourself.
The thing is, you don't know that the service you're using uses WebRTC, quite frankly because the technology doesn't matter, the user experience does. Also, the sheer fact that we seem to have standardised a very good (and very secure) way of doing peer to peer transfers, and that's getting implemented in browsers, with client libraries for iOS and Android is HUGE.
Check out: - https://appear.in/ - https://talky.io/ - https://screenhero.com/ - https://github.com/feross/webtorrent - https://peercdn.com/ - https://sharefest.me/ - ...and lots, lots more. Sorry to the ones I forgot to mention/don't know about.
For some pure WebRTC experiences. http://simplewebrtc.com/ if you want to build something yourself.
The thing is, you don't know that the service you're using uses WebRTC, quite frankly because the technology doesn't matter, the user experience does. Also, the sheer fact that we seem to have standardised a very good (and very secure) way of doing peer to peer transfers, and that's getting implemented in browsers, with client libraries for iOS and Android is HUGE.