I was thinking about plopping down $35 for the Google HDMI dongle, the Chromecast. However, I happen to get a few airplay speakers in which my opinion went 360 degrees. The Chromecast only does video and not a good job at that. I listen to music mostly so audio streaming is pretty important for my use case needs. Yesterday, I got a Klipsch G-17 and a Sony SA-NS500. When I set-up them up, I discovered something I never knew before: Multiple streaming to various speakers simultaneously. Take that AD2P Bluetooth! You don't get that compress AM sound of Bluetooth with Airplay and you don't need to pair if you are on the same network. I live in a house with three floors and approximately 4,000 sq foot and Airplay works everywhere. Bluetooth works at most 15 feet.
I did not pay attention until now but the ability to stream multiple speakers all at once is a stroke of genius.
The Chromecast would have a been a fun toy at $35 but I have no need for extra gadgets I often throw away into the sock drawer after 15 minutes of use. The key deterrent was the fact some of the streaming is gimped and not available on the low-end Chromebooks which I have. In addition to video, the key thing I use Airplay for is for music. Airplay is really mature and I can't wait to get my free iTunes radio (iTunes Match subscribers get ad-free playback). This will be pretty cool to listen to all that free music all over the house. This means, I think I will be investing a little more in Airplay and airplay devices.
Now, I think I'm going to invest in some AudioEngine A5+ and an Airport Express set-up. I just ordered a refurb Airport Express station for $65. I think it is well worth it. I may even splurge on some high-end Bowers and Wilkins A7 this Christmas.