Slots may be even worse than the doctor’s office, in that most of us will never know the true price of our wagers. That is, other than visits to the doctor’s office and possibly the auto mechanic, we know the price of most products and services before we decide to pay for them. An important economic theory holds that when the price of something goes up, demand for it tends to fall.īut that depends on price transparency, which exists for most of the day-to-day purchases we make.