I'd like to see another option for Vote to Close: Abandoned
Frequently, when trying to answer unanswered questions I'll run across questions that the asker has seemingly abandoned:
Other members have asked questions trying to get enough information from the asker to help. And yet they've not responded, even months later. Why am I wasting my time looking at a question the asker doesn't care about.
I think its safe to close a question that's two+ months old without enough information in it to answer it (as evident by the lack of answers), and without an asker who's still interested in getting the question answered (as evident by the lack of responses and updates to comments left by other users).
There's very little value to the internet in a question that can't be answered. In some ways it is of negative value, because it's going to draw people in who are having a similar problem, but they will be wasting their time because they won't find an answer.