For $70 I can get about 400lb of coal, 13 buckets, so coal it is for me. Plus I am a tight fisted old cuss and want the most bang for my buck. Also an old brake drum forge is cheaper to make than one of those gassers!!! But I have to admit I would really like to try one out just to see if there is a difference in what you can do and how well you can control your heat.
I bet that each has its place, strengths and weakness'.