So I picked up a Chromecast on impulse during the best Buy Black Friday sale. Also just got a new Samsung 32" Smart TV for the bedroom. I didn't realize I could do screen mirroring with my LG G3 (Miracast) and from my Nexus 7 (screen mirroring). My question is is there really any point to keeping the Chromecast?? Will it bring anything to the table that I can't already do with screen mirroring??? Other than the ability to use Chromecast apps that will stream with the device screen off.