Nelviticus
Well my Sonos plays lossless FLAC over wifi. With a digital wireless connection like wifi or Bluetooth there's built-in error correction so if you get a connection at all you'll get a flawless one.
WiFi might be more resilient to errors but Bluetooth is still a faulty method for streaming, especially with partial error correction being the only available methods for the time being. This, for saying that while there are already certified streaming techs around, I personally have always favored wired connections and will do so in the foreseeable future, but I do respect each and everyone's preference, particularly since wireless connections do avoid physical clutter.