Google being "Google" a/k/a using Ad-net Integration Model (Ads&Network) heads towards buying out all competition and then killing it forcefully (if it stands in a way); this way they [Google] stay on top of the every industry line on the www (which crazy enough, includes domain registers). It's basically lobbying for the company greater good, see: Entrepreneurship 101 =) There are many reputable domain registers like NameCheap and alike, that offers so much for less price. But, try typing domain registration in the Google and see what is the first URL offered to you (ta-da: it's Google Domain Registrant and GCM integration).