I used to have a swarm catcher. I never used it but I like the design and concept. Well, I let someone borrow it ...., and the rest is history. Some day I will buy another one. Anyways I just ordered one for a beekeeping couple I know. One thing I like about the swarm catcher is that it is light-weight and the bottom is attached to the nuc body. I figure you can still use it as a nuc. It seems to make sense to have one on hand-just in case. Eventually the need will arise.