To encourage consumers to upgrade, most vendors offer discounts to existing customers. For instance, the price of Microsoft's Office software suite is NT $ 20,000 for new purchasers, but for previous buyers it is cheaper by almost half.
多數軟體業者對舊用戶都有優惠措施，以鼓勵消費者升級，以微軟的 Office 軟體來說，新購買者一套兩萬，舊有用戶可以便宜將近一半。