That man is the richest whose pleasures are the cheapest. Henry David Thoreau
Love is the cheapest of religions. Cesare Pavese
Advertising is a valuable economic factor because it is the cheapest way of selling goods, particularly if the goods are worthless. Sinclair Lewis
The best is the cheapest. Italian Proverb
The best goods are the cheapest. Dutch Proverb
Those bosoms can be sold cheapest which are stolen ready-made. German Proverb