[quote name='rpnguyen']the first game is mediocre. it's up to you. you can always watch a video or something[/QUOTE]
I disagree. The combat and "side" missions in AC1 certainly tend towards tedium -- they don't vary throughout the course of the game -- but the voice acting, plot, and overall gameplay is pretty tight. The free climbing ability is especially well-tuned, IMHO.
As I write this the PS3 version on Amazon is back in stock (shipping within 3 days) for $27. No love for the 360, though.