I don’t quite agree with this as stated, as the experience of enjoying a bargain can make it more pleasurable, or at least I have seen this for many people. Some in fact enjoy the bargain only, not the actual good or service. Nonetheless here is the abstract:
Prices are typically critical to consumption decisions, but can the presence of price impact enjoyment over the course of an experience? We examine the effect of price on consumers’ satisfaction over the course of consumption. We find that, compared to when no pricing information is available, the presence of prices accelerates satiation (i.e., enjoyment declines faster). Preliminary evidence suggests price increases satiation by making the experience seem like less of a relaxing break and something to financially monitor. We rule out several alternative explanations for this effect and discuss important implications for marketers and consumer researchers.
That is from Haws, McFerran, and Redden, “The Satiating Effect of Pricing: The Influence of Price on Enjoyment Over Time.” The original pointer was from Rolf Degen.