I bought ME1 months ago for $14.99. I tried playing it on 2 different occasions since then and couldn't get into it. Finally, a couple of weeks ago, I tried again, and I got hooked. It was a very problematic and unfinished game, but it was still fun...the story was awesome and it only took me about 18 hours total playtime to complete it (with many side missions done as well).
ME2 is far superior in most ways. Dunno about the story yet, though...I'm just beginning. And it looks like it's going to take way more than 18 hours to complete.'
but yeah, Fallout 3 > *
I might try out Dragon Age: Origins when I'm done with ME2