In our house we have a now tv box in every room with a TV.

in the living room we have
  1. a now tv
  2. Apple TV gen3
  3. wd live box


Now I have seen the chrome cast and I'm thinking do I need one?
if we go away I take one of our wd live boxes with a usb hdd loaded with films and TV.
Would I be wasting my money?

looking at the amazon fire tv seems more like the Apple TV but for amazon prime.