In reply to Matt.

Come on. Do you really think it's good for customers, or for fast food restaurants, not to know what their burger and fries are going to cost until they arrive at the digital menu, and then decide? That take sounds a bit silly if I'm understanding what you mean correctly. People like and expect a certain amount of predictability in the pricing of things they need and use every day. Businesses run more smoothly too when they know what their costs will be.

Price stability is a goal of government policy because it supports social and economic stability. I believe would see a huge pullback of consumer activity immediately if suddenly everything was rapidly fluctuating dynamic pricing.

No one person has the bandwidth to track prices for every consumer good they need at all times, or the practical ability to buy when the efficiency curve for price and time to travel hits an optimal range for hundreds or thousands of everyday items. The retail world is not the stock market.