Why would anyone at this point go with Google's solutions for voice/video? Last time someone over at Arstechnica did a count they had 4 or 5 competing and large

Why would anyone at this point go with Google's solutions for voice/video? Last time someone over at Arstechnica did a count they had 4 or 5 competing and largely incompatible solutions - they are NOT a serious player when it comes to producing, and perhaps more importantly - maintaining, a Skype replacement/alternative.