I picked up the hobby last October. The top one is my first purchase and was a basket at the local B&M. In December, they held a slow smoke contest and for $20 entry, I received the 3rd pipe to smoke for the contest. The Calabash is what I selected for taking 3rd place and it is a real nice smoker. The last is the Zobo from ebay at $14.99 shipped. I've been lucky so far and not come across a bad smoker
Bowhatchie- Thanks Noone was more surprised than me I think. I was figuring I'd go out pretty quick and I would have been really happy with the contest pipe. I figured I was coming out ahead with that alone. I managed 45:15 and first place went 61 plus
Schmitzbitz- The Calabash does not have a filter in it. It's a Butz Choquin so maybe that is a bit different than the one you are thinking of??