Behavioral economics, in short. It's the reason why people rent a $1k TV that lasts for 10 years at $50 (5%) a month ($6k spent) or pay 2% a month on a creditc

Behavioral economics, in short. It's the reason why people rent a $1k TV that lasts for 10 years at $50 (5%) a month ($6k spent) or pay 2% a month on a creditcard. We tend to overlook the small amounts and get slapped in the face by the large amounts.