I think it all boils down to one thing. Why did you get into bbq'n? If it was for fun and a good time then if you don't watch out it will become a job you hate. If it were to make money and have a business then catering could be your answer.
I built a large bbq pit with the intent of fun and competitions and have found I could make some money also ( usually spent going to competitions ) If one day I take to catering full time then I may decide to take catering jobs over competitions or add a part timer to cater while I am at a competition but that could be a nightmare.