Is it okay for the flea market host to charge you a higher vendor fee on sunny days? What about if the day started cloudy, and then at noon it got sunny - would you be okay with paying a higher fee for the 2nd part of your day?
That’s how pricing already works. I would bet summer flea market days cost more, due to the higher probability of more customers, due to the higher probability of good weather days.
Airlines/hotels/rental cars/theme parks charge more for days where demand is anticipated to be higher. Any expiring good works this way.
