Well the only Pulled Pork sandwiches you can get around here are cooked in an oven, and even those are hard to find.
So I would say there is a demand for them.
BBQ is becoming more and more popular and the few people around here that can actually BBQ is rare.
I have been making a living doing photography for the last 8 years, and if you want a career that is becoming over saturated with photographers and a demand that is going away every month that is a great career.
It was not that expensive, I had the trailer & smokers, used craigslist, and amazon.com to get the sink built and a little elbow grease and paint.
Probably will never get rich doing this, but if it will supplement my income a little will be a fun venture.
One thing I always notice, even in a bad economy is that people will still eat, and pay for good food. Can not say that about pictures anymore.