Then Apple added in-app purchases, and decided to include those when calculating apps’ earnings for the Top Grossing list. The result? The list is completely dominated by fake-money compulsion engines. The very fact that these are the top grossing apps signals just good they are at vacuuming money out of pockets.
This change really irks me since Top Grossing used to be where one could easily find excellent apps. Now it is just an extension of the Top 25 Free apps category.