I think it doesn't cost actually so much.
All of this badges was freeware excepting test and may be sponsorship.
Proabably 10$ (test + sponsorship) + 5$ for activating badges
Another question: do anybody really need that ?do you think itsn't fair because teamspeak sponsorship code selling by 40 euro
and merch by 10 euro
and beta key by 5 euro
its not fair by most to sell it with "15" $
Citron was just 26 years old when he and Cassley sold OpenFeint, their social platform for mobile games, to GREE, a social networking service, in 2011 for $104 million. By that time, OpenFeint had more than 100 million users, and over 7,000 games were integrated into their platform.