Can we cut syllables instead of prices?

According to a study, prices that have fewer syllables are more memorable than those with more:

... two seconds after taking a product from a shelf, the average person has roughly a 50 percent chance of remembering how much it cost. But few researchers have examined why some prices are more memorable than others.

According to a new study, it is a matter of syllables. Each extra syllable in the price reduces the chances of it being recalled by 20 percent, according to the study, which will be published in the September issue of The Journal of Consumer Research. In other words, someone faced with a $77.51 camera (eight syllables) and a $62.30 bookshelf (five syllables) is about 60 percent more likely to forget the camera’s price than the bookshelf’s, after half a minute.

The question I would have is: How important is it that the shopper remember the price?