Why Bother?

A flea market appeared a week or two ago near me. I've tried to visit it twice now, both times within their posted hours and they've been closed. There's a sign saying they "might sometimes be closed within the hours" because the owners have other jobs. The flea market is about the size of my living room and only sells what appears to be junk from someone's attic. Why bother if you're not putting at least 80% into it?