I've been "keeping my eye out" for a used WSM for a while now and haven't found any listed locally. Today I found 3, all 18.5". 2 are listed for $100 and about an hour and a half away, and 1 is listed for $30 and 2.5 hrs away. I just can't justify driving any of those distances, even at those prices... but I will be near the $30 one in 3 weeks...I wonder if it will still be available...lol