Here in Florida everybody is looking for $1 stuff at flimarkets.I tried to sell my shirts at garage sale/craft show but it was waste of money for me,because my shirts are kind of expensive and I couldn't go lower then $16 so I sold only 6.People were looking for cheap stuff there...I would say :try to go once and then you will see how it works for you
I'm going to try to sell at craft show in more expensive part of the city.