Your last point is why I've basically stopped trying new apps at all. I've been burned a few times now. And it really sucks to put X hours into something only

Your last point is why I've basically stopped trying new apps at all. I've been burned a few times now. And it really sucks to put X hours into something only to be beaten over the head by a hidden cost. I'm hardly a mobile app power user, but I've dumped around $150 on apps. Almost all of that was before in-app purchases. Now even paid apps can have in-app purchasing, making it impossible to know what you're actually paying for without thorough review. So I no longer make impulse purchases and I hardly spend any time doing app discovery. I don't mean to speak for the author, but maybe this is what is meant by drawing money away from the ecosystem.