You need more than 4 quarters to get an American dollar ?
LOL.
The original expression is :
«*Échanger 4 trente sous pour une piasse «*
It means, you are being had, you loose in that trade.
But it also means, expect to loose a bit if you choose to upgrade.
In other words, there is a price to pay to be in business.
It’s unfair, but that’s business ...