Earlier quoted context omitted.
It seems to me that Android is the next Nokia. Large market share but like Nokia their marketshare is almost worthless since Android users dont spend as much money as iOS users. At least that's what everybody's saying.
A developer on HN submitted this a few months ago: http://news.ycombinator.com/item?id=2929612 His summary: Android=$4428.08, iOS=$5914 (over the same time period) So it is true that Android users spent less, but not by a huge amount.
iOS = $5914, Android and iOS = $10342.08
Between the question of statistical significance and the vagaries of mobile app promotion and discovery, it's hard to say that one clearly pays better. However, both usually pays more if one is paying well, so it would often pay to support both as soon as it is practical to do so.