I am a pure gamer and I rarely use cheats except on games like GTA as you mentioned and there is not doubt that cheats in such games add a lot of more fun and the game just seems to be more enjoyable when cheats are used. However, as I mostly play role playing games or strategy games, I don't like using cheats especially to ease things for me. As I stated earlier, I am a purist. And whenever I think of applying cheats on such games, its almost like being disrespectful to my skills. As a matter of fact, for me, its fun to be stuck at some spot in the game because such games are more challenging. But of course, its just a difference of perspective. As you said you just play games for fun, but when I start playing a game, I don't leave it until I have completed all the achievements, primarily to brag in front of my friend.