If you really like smoked food - go get one!
I've had mine for years and have been smoking fish - Makerel are delish' smoked - so are trout.
I have also been curing & smoking my own bacon - totally different from the watery mush you get from the supermarkets. Smoked duck is another treat as is smoked ham. Me mouth's watering just thinking about it.
Anyway, the one I have is electric and American made - Jensen Lhur - I think the manufacturer is named - got it from some internet fishing tackle outlet - can't remember the shop name though.
It's basically an aluminium box about 18"x !8"x 18" with a ventilated lid and 3 x horizontal shelves in an internal rack. It has, what looks like, an old kettle electrical element in the bottom and a small pan for the wood chippings sits on top of it - as simple as that - but does the bizz.