Comment by amazingamazing

Google has some amazing negotiating skills - paying 50% more for something they literally tried to get not even a year ago... (they tried to get it at 23 billing not even a year ago)

https://news.ycombinator.com/item?id=41042034

That being said, Instagram and WhatsApp were expensive for Facebook and those ended up being a steal. Time will tell, as usual.