Sorry if this has been asked but I haven't been able to find an answer to my questions... I have been reviewing different vertical insulated smokers vs gravity fed smokers. Obviously the gravity fed smokers are more expensive. I understand the concept of how the charcoal feeds down into the smoker. I also have read that some smokers (Deep South) have special airflow systems that would make them stand out. I have read that the verticals can get anywhere from 10-18+ hours on a full pan of charcoal. The gravity fed's seem to get a little more. So, my questions is around the price difference b/w the 2. Is the main thing that you are getting from the gravity fed smokers a longer burn time or is there another big difference? If that is the main thing them I might go the route of a vertical and use a channel in the charcoal basket. I was just doing some more research and found threads where some where talking about having to use/manage water pans in vertical smokers gets old. Thoughts? Thanks!