Agreed Rick.
To smoke, to properly smoke, you need two key elements; wood, or some type of wood product, and fire or hight heat source.
Ive been grilling/smoking 30+ years and learned some from my dad and my own trial and errors. I love it! It's my favorite way to prepare meals!
I have used a number of different smokers over the years. I can tell you without a doubt vertical smokers are far superior to any horizontal smoker. The main reason why is also the most obvious. Smoke and heat rise.
Electric smokers are very expensive dehydraters. The concept is exactly the same. Gas smokers, like gas grills are easy to use and can produce somewhat palletable food, but really what did you do but turn it on? Nothing really. It's like a Ronco, set it and forget it. Thanks, but no thanks.
Give me a stick burner or charcoal smoker or give me death!
Some of you here shouldn't take that last comment too literal!