This post is interesting to Seth, since he has been in a similar situation.

Well, I have no more close votes for the day. But I only reviewed 19 questions, hence I have still access to the review queue. BUT! since most of the questions needs to be closed, I have to skip all my way until I find a question that don't deserve to be closed or just not reviewing 20 questions for the day.

Is this really common and expected behavior?