This is what I have found. I started indie game dev a back in 2009, and I'm finally to the point where I'm making a very comfortable living, but by no means a millionaire. However, having a small company with some fellow devs is now in the realm of possibility, which is a long-time dream of mine.

Edit: My games are mostly mobile. I am really excited about the figures he posted for Steam. I just got one of my games greenlit on Steam (SimpleRockets) and I hope I can sustain further development on it.