The problem with pellet smokers is the cost of the pellets. A 1LB bag at Walmart is $5.99.
So by the time you do the smoking, it could cost quite a lot. I am able to get a 1kg bag of hickory sawdust for $4.90 which is more reasonable for my location. I would say that the wood cost is one of the most important things to consider for buying any smoker.