Posted: Oct 23, 2013 1:12 am
by Strontium Dog
The gas station example can largely be explained away by convenience, you can pay with dollar bills without requiring or receiving change. I appreciate many people now pay by card, but I'd guess this behaviour has carried over to cashless transactions.

I do prefer round numbers though, they seem more ordered, and order appeals to me as, I imagine, it appeals to most people.