This is the identical to early perspective on the secondary market in event ticketing: a sale is a sale, our work is done.
That means the restaurant is undercharging.
Then you realize how much money you are losing to arbitrage and the work begins.
A couple of decades later, you have variable pricing, dynamic pricing, distribution to expedia, official secondary market partnerships, conferences, niche-y saas products, competing enterprise products, revenue managers, specialized masters' degrees, papers at INFORMs, revenue directors, VPs of sales and revenue,
and a bunch of people who just want to cook and eat