I know what you are saying, XBL achievements have motivated me to do games/things in games I would not normally do. (Mortal Kombat comes to mind, damn Shao Khan, damn his sorry hide!) I have however, not had any problem playing Oblivion since it's achievements are mostly main quest and faction related. Fallout 3 and New Vegas had some achievements I had to go out of my way to grab though, like playing through the last part of the main quest in New Vegas several times but for different factions, or collecting all the files in Mothership Zeta.
When I first got Oblivion back when it came out I was a bit sad that it only had "boring" achievements that you could get by just
playing the game. I wanted a challenge! Now however, I dread the games that got that one, unobtainable achievement since that means I can't "catch 'em all".
![Sad :(](http://gamesas.com/images/smilies/icon_e_sad.gif)
I hope Skyrim mostly has faction/main quest related achis that one can get on
one play through but with some extra achievements to spice it up (Fallout style!).
Why? Because Skyrim will be awesome anyway, it does not need several hard to get achievements just to keep us in the game, the game itself will do that for us! I got 300+ hours logged on one Oblivion character. And I got all my achievements with him (except one, the Mania side of the Shivering Isles, since he chose Dementia
![Surprised :o](http://gamesas.com/images/smilies/icon_e_surprised.gif)
), and I can promise you that most of those 59 achievements were unlocked in the first 150 hours of gameplay..
![Wink ;)](http://gamesas.com/images/smilies/icon_e_wink.gif)
((I apologize in advance for any spelling errors or any errors of any other kind, since I'm so damn tired. All hail Mr. Spellcorrector, my loyal friend during posts like this.
![Smile :)](http://gamesas.com/images/smilies/icon_e_smile.gif)
)