[pentaphobe]

popularity is irrelevant - the context is day-to-day. Prices change slowly over time of course, but that's different.

If there was less egg available for a given day, McDonald's [^1] don't charge more for a McMuffin, they sell fewer McMuffins

I'd argue AirBnb's approach here is more like Uber's surge rates. Which are clearly more extreme than anything taxi cabs did (bar the occasional bad actor)

[^1]: mcdonalds is stretching the "restaurant" analogy here, but they have a higher consistent turnover so seem like a closer comparison