Bluesound, best value streamer?

Is Bluesound the best value out right now to stream high quality files with ipad integration?

Thinking about using it's digital out or even the new NAD M12 with the module and skip a dedicated preamp.
Best value I have seen is plex on Amazon fire tv box. Box costs less than 100 and supports high res audio and video via toslink and hdmi. Plex app to run on it is $5. Does not require Amazon prime to run plex. You can run plex on smart phones or tablets and "cast" to Amazon fire tv plex to use those as controllers. Use standard hdmi to any tv for display.

Plex runs on many platforms costs virtually nothing and sounds and looks great.