I chose the 500k+ range, because that's what one of my apps (main project, not side project) gets, but that is the exception. The answer to "is the money good?"

I chose the 500k+ range, because that's what one of my apps (main project, not side project) gets, but that is the exception. The answer to "is the money good?" should also be obvious. However, the norm for me, for personal side-project apps is between 5k and 100k downloads per month. Income is also decent. A few things I keep in mind whenever I start working on a new app: - am I sure the target is big enough for that app ? If not, do I really love the idea enough so that I would develop it just for my personal pleasure? - what are the other apps in that area ? What are they missing ? If all of them are super-complex, can i make a simple one? Or the other way around ? Can I make it better than everything else ? - Are there other ways of marketing my apps than just by counting on the Google Play search results ? If yes, how hard would it be to pursue them? Is it worth my time? - If I want to build a game of a genre that doesn't exist yet, how are those type of games doing on the PC ? Would the game be appropriate for a touch-style input ? Basically, all of the projects I've built eventually generated enough income to cover my development time (even if it took over a year). But there were plenty of them that I just didn't start developing because the answer to one of those question was just.. "NO".