But is that because mobile game developers made a conscious effort to just focus on making money from IAPs, or because the economy on mobile is so badly skewed?

But is that because mobile game developers made a conscious effort to just focus on making money from IAPs, or because the economy on mobile is so badly skewed? A $10 game on Xbox, PlayStation, or even Steam is considered fairly low-cost. On iOS or Android? Very few people are going to buy that.