This sounds very much like the way things worked when I was working in the AAA games business as well. >90 percent of all titles are lossleaders, and the few th

This sounds very much like the way things worked when I was working in the AAA games business as well. >90 percent of all titles are lossleaders, and the few that are hits make up for the lost money developing the others. My guess is that most branches of entertainment are similar. Movies, TV, music etc. There's no such thing as a steady, guaranteed income when it comes to things like this (in my experience/opinion). That doesn't mean making apps is not a viable business. Just not for everyone who tries.