I guess I'm the first guy to comment that is currently using a charcoal smoker? In my case the Napoleon Apollo, which is a knock off of the Webber Smokey Mountain. Its basically a 3 part barrel smoker, and if you take the top 2 parts off and crank the fire you can use it as a charcoal grill as well. While I do think the charcoal and burning wood chunks instead of chips gives you a deeper smoke, I'm not a snob about it - and I didn't go this route based on taste/performance/principal.
I ended up here because of a bad experience with a Masterbilt digital model. Had 3 controllers crap out within 2 years. To their credit they kept sending me new ones even after the warranty expired, but that doesn't help you when you just loaded it up and started a smoke and the thing dies after the first 30 minutes and won't turn on again. So after the 3rd one died mid-smoke I heaved the whole thing 20 feet down my driveway and rage bought the charcoal one, lol. "Nothing digital about f**king FIRE!" I think I remember swearing.
However I'll admit the digital when working was a lot more convenient, and by extension I ended up using it a lot more. The charcoal is a full day commitment usually, and if I do a brisket or something that takes a long time I often end up finishing it in the oven when the coal burns out. And the unit I have is not sealed particularly well, so lots of heat and smoke escape. So its not perfect either by any means. I'll probably end up back at digital again at some point, when my laziness overtakes my frustrations with modern technology.