I’m never sure what’s fair and what’s not, especially when it comes to my art.  I was grateful to have reasonable expectations and outcomes for a recent open studio tour.  At 73, with 40 years of making art behind me I think it’s fair to expect 100 plus visitors and sell at least $500 in work.  Didn’t happen. I saw about 20 people and sold zero dollars worth of work. And that’s fair.