It's hard to have another grower in a small market. I am in the same situation. However in my market we are both allowed to be, any day, whenever we want. So we are always there, every weekend, both of us. It is hard indeed to make such a big effort, grow product, set up, invest time in the weekend, and have small sales. I know I lose some sales from my competition being there, I noticed an increase in sales a weekend when they were absent. I think at least some of those new customers returned to my stand on following weekends. Even if my sales are very modest, over time I am seeing more return customers, they bee-line it to my stand and ask for a product I created. It is so satisfying. In other words, even if I and my competitor both grow micros, we offer different products. If I were you I would indeed show up. As you develop a following people will come more and more consistently to visit YOUR stand, you want to be there for your repeat customers, consistently. I also sell my products in a small market, and I let my customers at the farmers market know. Beyond what they buy from me at the farmers market, hopefully after having that in-person interaction with me over the summer at the farmers market, they will choose my product over those from my competition, when they buy year round/ in the fall, in the winter, in the spring, in the small market. In other words, there are some benefits that don't materialize immediately, but they do eventually, from being at the farmers market. But I hear you. I still feel frustrated after a huge effort and a long day, if the level of sales is too modest.