In response to guides, not every game is about the surprises and not every encounter is a puzzle. Guides can offe trips and tricks and get you t whatever your goal is quicker that much quicker.
I response to cheats, cheating can be fun. A great example is GTAIII, I don't think I ever played that game while not cheating. The game itself was boring but giving myself all weapons and five stars was fun. I made my own game by seeing how long I could survive.
Or another great example mint be Oblivion. Sometimes I just want to see the story and don't care about the game. I don't particularly like the oblivion gameplay so I cheat. I give myself a lot of money or hig stats and just experience the story.
What does it matter if I skip the part I don't enjoy so I can experience the part I do?
