as i usually play competetive games (UT !!!
) there can't be much to uncover (except for maybe some secret characters)... it's a multi player game: man against man, sweat against sweat, mouse click agains mouse click... it's MUCH more deeper than you understand even after playing for several hundreds of hours... it's so much about your character and how much guts you have (no kidding, you should see the competition of higher level players... it's not about skill anymore it's about the brain and nerves).
But when it comes to the single player games, it strongly depends on how much i like the game... if i enjoy it, then no cheating, 101% walk trough. If it bores me, i just try to get through it asap, sometimes even with cheats, just to put a tick, that i have finished it, uninstall it and forget about it. i just don't like unfinished things, that's it.