I would argue they are not. The cost of getting a game to steam is significantly higher than getting an app to a marketplace (Apple, Android, etc) and are meant

I would argue they are not. The cost of getting a game to steam is significantly higher than getting an app to a marketplace (Apple, Android, etc) and are meant to last for a much shorter span of time. As others have stated, the cost for making copies if effectively zero. The race is not to the bottom (as there are too many specialized games for different niches) rather, it's a race for content production.