This post documents one developers journey as he prepares his app for release. One of his lessons is in regards to monetization is to keep your soul and make a good app that you are comfortable charging money for. I think that is a very difficult balance, especially with iOS games. It's hard to look at the success of the games that use psychology to bleed every cent out of their users and not be tempted to follow.
7 Lessons to Bootstrap an Indie Anything by Willie Hartman