Originally Posted by caliking
Probably because the Jumbo Joe was pretty hard to find until its revival for this year. Add to that the problem of 30gallon drums being pretty rare and you have a scarcity of midi WSM's.
Add to that, the 18.5 WSM which is the same size. The mini-WSM at 14.5 fit my desire for a smaller smoker. Perfect for a couple of chickens, small turkey or medium size brisket. My original motivation was to have something for small smokes to try different smoking woods w/out committing an entire smoke in the 18.5 WSM to a test. Had Weber sold a smaller product I would have added one to my collection. (In fact they did at one time, but I have never seen one on sale and if one showed up now, the price on CL or eBay would probably be prohibitive.)