The bitterness of poor quality remains long after the sweetness of low price is forgotten.
The saying contrasts the immediate attraction of a low price with the longer-lasting consequences of poor quality. Paying less can provide a brief sense of advantage, but that benefit may soon be forgotten if the product performs badly, wears out quickly or requires replacement. The quotation therefore distinguishes purchase price from overall value.
It does not mean that inexpensive goods are necessarily inferior or that paying more always guarantees quality. Price and quality can vary independently, and a sensible purchase depends on needs, evidence and available resources. The broader point is that decisions based only on the lowest initial cost may overlook durability, reliability and future expense. Assessing value therefore requires considering what is received over the life of a purchase, rather than focusing solely on the amount paid at the outset.