I generally end up installing a steam patch to get rid of steam. It's nice on multi-player games like left for dead since you can easily meet friends and whatnot, but it's a waste of time and resources for single player games. It's sad that pirated games offer an increasingly better gaming experience than retail games.
For the question of why cheat. Not everyone has the same taste in games. I know some game designers have this idea that we have to play the game on their terms, but since I paid for it I don't really care. I'll play it the way I want to play it. If that means I don't have to use save locations or not having to farm gold or whatever other retarded thing they want to implement, I honestly don't care if developers get butt hurt about it. It's a single player game and I'm only hurting myself really. Usually I'll play the game as is, but if some aspect gets tiresome I have no qualms about using a cheat to get around it. In Oblivion I increased my carry capacity because I was just tired of having to quick travel to town and sell stuff off.
I honestly don't really like the direction games are going. I understand the need to keep the integrity of online multi-player, but most of the moves seem mostly in the interest of control on the company's part. Looking at the recent UFC game, everything they've done has been completely stupid. First there's a one time use code just to play online, so if you sell the game, rent it, or even take it over to your buddy's house, you can't play online. On top of that, they patched the game recently to almost completely nuke the single player career mode because people were using it to make super fighters online. So instead of maybe restricting the stats of created fighters online, they just decided to make the career mode useless. Which didn't even fix the problem because all people had to do was uninstall the patch, make their cheap super-fighters, then re-install the patch to cheese online again. This is where we're at right now. It's pretty adversarial between gamers and publishers these days.