Oh yeah, I forgot the issue of taxes. You must collect them, file and pay them. Sometimes the "tax people" roam shows and ask to see you license. If you don't have one, the nice guys will create one for you right there. One of our NE states
will automatically fine you every year for NOT filing , even if your sales are zero. ...this happened to us after doing shows in that state for 2-3 yrs. We stopped and because we forgot to notify them , they fined us. Explained it and they forgave it. Lots to consider but if you do the research and dot the i's and cross the t's, it could work for you. You will never know if you don't "put your feet in the water"...but I would really keep expenses under control. Be realsitic about your expectations.