I have nothing against people being rewarded for doing stuff others enjoy. What I have a problem with is the freemium model that seems to have taken over. It's nothing but greed what some developers are doing. I had quite a few games that I paid for. Then, one day, the app claims that "due to compatibility issues, I need to download The New $game to continue receiving updates". Then you go and look at the "new" version to find it's free and full of IAPs. THAT is nothing but greed.