Well, it's hard to put a value on something when I don't know what it would be worth. I had a number in my head between 12-16K, which is quite a spread.
KBB gives a better indication on what "trade-in" should be vs "buying from private party or dealer". Just wasn't sure what to expect in a trade-in.
I am not in a rush to sell as I have a place to store it and don't need the equity, though it would be nice to have it up front. I put it on craigslist for $18K to see if I get any bites. In my experience it's hard to sell vehicles over $12K on CL though.