> Whatsapp has lots of users - most of whom are in countries viewed as almost worthless by advertisers. Really? I have run campaigns in almost every country on

> Whatsapp has lots of users - most of whom are in countries viewed as almost worthless by advertisers. Really? I have run campaigns in almost every country on this rock. All people are valuable in some way. Sure a wealthy country citizen is worth more but you'd be surprised how much companies will still pay and compete to reach that villager in Thailand on their mobile phone. I agree that $19b was excessive for this company, but if they can maintain/grow market share then it wont be that bad. But given the way technology changes I think they should have discounted their offer to offset the risk another service gains popularity. Unless FB do something to lock in distribution like create their own mobile OS, this will remain a big risk.