I do the exact same thing, actually. Even made another five characters in DA:O.LittleBlondeGoth said:I have trouble finishing them, but in a weird way.
If I'm really enjoying a game, say Dragon Age: Origins, then I don't want to finish it. Because then it'll be over. In the case of DA:O, I saw I was getting close to the end, so I tried to prolong the experience - sought out every side quest I could find. Created another five characters (one for each origin) so I could see those too. This is probably why most of my favourite games are long RPGs, like Bioware's or the Final Fantasy series.
I suppose it's not so much having trouble finishing them, it's not wanting them to end.
But then again, I'm a big fan of replaying my games if I really like 'em. Just like rereading a favorite book or rewatching a movie. So while I do have a habit of drawing out my games when I'm near the end, it never quite gets to the point of me not being able to finish them.