App.net failed charging $50 a year. I think they should have tiered or been cheaper. But that’s one datapoint.
FB does tens of billions in revenue on 2.1 or 2.2B users worldwide. Far more than $5 a year. I assume a $10 a year social network could break even or even profit. But how many people will really pay? Especially when you scope out to every type of person from every country FB has a hold on.
