Clash of Ecosystems: One Apple Gamer Equals 10 Facebook Gamers

Well this is a tangential clash of platforms at best. But it is an interesting stat:

"Value per User per Year - Facebook: 2.35 USD Apple: 26.79 USD
GDP of total ecosystem in $B Facebook: 2 Apple: 5.4"

Statistics Source: ex post facto

The per user numbers for Facebook could just be because of its sheer size. Or, maybe, the value per user would genuinely drop at a point (which facebook will reach in due course) - we will find out.