excuse me while I spitball a few numbers
http://www.ign.com/articles/2015/05/07/994-million-copies-of-pokemon-oras-have-been-sold9.94 million copies of ORAS sold as of May last year, $40 each on the Nintendo store right now; so ~$397.6 million.
NZ - 4.471 million
AUS - 23.13 million
US - 318.9 million
total - 346.491
GO - 138 million
39.8% of the population is playing
That's two out of every five people
Big N gets 10%, so in order to compare to the ORAS release they would need, on average, each user to spend about $29
No, you as a user might never spend any money on it and intend to play purely on effort, but that faggot over there just dropped $100 so he could powerlevel. He'll be back tomorrow to take your gym.
And I wonder how many of those 138 million will be getting Sun/Moon for Christmas...