I read all the comments, the whole time thinking about how crazy this number is. I read why people use it, because it is cheaper (free?) than the ridiculous pr

I read all the comments, the whole time thinking about how crazy this number is. I read why people use it, because it is cheaper (free?) than the ridiculous pricing of SMS. So, I looked up the revenues generated by SMS, and it is estimated to be, according to a very cursory search: 150 Billion USD per year This is the number that Facebook is using to compare their offer against. It is not crazy if they can capture even a few percent of that money.