The only time I ever cheat is when I get bored, so I cheat all the armour and weapon goodies into my inventory to have a looksie. But the reason I get so bored is because games no longer feel like a challenge or maybe it's not so much the lack of difficulty that sparks my boredom but the familiarity, you get to a point when you have played games for so many years that all new releases feel like a shiny reincarnation of what came before. Thats probably why I stick with RPG's, the gameplay may feel the same but at least the characters and story is something new.