The (potential) guest buys this voucher at a lower price than the actual value. This type of voucher is therefore particularly suitable for providing a concrete incentive to book. Such offers are particularly useful for the hotelier if they are targeted and generate additional revenue. For example, guests who have already stayed at the hotel may be encouraged to book again, or guests who receive a spa voucher on site may increase their consumption.  Discounts in euros (e.g. -20 euros) lead to a better conversion rate than percentage discounts (e.g. -20 per cent), as the price advantage is immediately apparent to the buyer.