However, you also get bonus points for selling large amounts of a single good in one go. During play, you collect and sell sets of matching goods but each sale of a particular type of goods brings decreasing returns as items flood the market, so you always want to be the earliest to sell.
But Jaipur has its hooks in the ingenious way it re-creates actual market forces, and tempts you into making a mistake by offering big potential rewards. You might think a trading game between two people would be a limited concept.