Two is OK as long as you have a better set up, superior product (or know how to sell it better) and never trash talk the other! If anything, get a good idea what they make, and try and make some other products. For example, my booth doesnt compete with the other booths, we all do something a bit different. One woman sells 7 different kinds of soap and two body butters, but she also sells a ton of other mishmash in her booth and honestly it looks messy. She doesnt sell much. technically shes a soap maker, but shes not taken seriously. Another is an ace soap maker, but he has a limited offering. They make goats milk soap with fresh goats milk from their farm- really cool! I generally DONT make goats milk soap, so I can send people their way looking for that.. they send people my way looking for scents they dont and wont carry. Last, there is a company that does "scent your own" type products. They use all bases, so customers know what they are getting with me.. handmade, truly handmade from scratch products. There are 4-5 of us in a market of 80, and its not too much... although I wish there were less.