When I was a kid in, elementary school, I used to take homemade cookies to school. Instead of eating them I used to sell them to other kids 3 cents each or three for a dime. I got a lot of dimes.Wonder how many actually fell for that sale ??
Years back my son worked for a home store. They put up a sale on an item at 5 each/ 2 for ten or 3 for 15 dollars.....many folks wanted 3 to get the better price!! My son came home from work very puzzled !!! We watched a Bill Ingval ( show your sign) comedy show that evening....my son stated after the show..." I understand now".