But that IS actually true, that if everyone used a coupon, the coupon would eventually go away or become weaker.
The expected percentage of people using a coupon is often part of the calculation (however vague) when deciding the coupon.
The expected percentage of people using a coupon is often part of the calculation (however vague) when deciding the coupon.
Teachers promote/showcase the device for students.
Students who buy the device earlier, might influence the choices in their future jobs.