"Unlike the $35 Chromecast, which needs to also be plugged into a power outlet, the Microsoft stick doesn't appear to require a power connection."
I'm sorry, but my $35 Chromecast is powered by the USB port of my TV.. just like the Microsoft dongle. The box also has an outlet connection in case your TV doesn't have a free USB port. That's terribly misinformed.
You can tell he doesn't own a chromecast or is being paid to not accurately describe it to make Microsoft look inavative... I just hope he's just a poor researcher.. My chromecast is powered by USB... No other wires almost magical.... I bet this guy thinks apple wallet NFC tech is new too