Expiry of Vouchers.
HL, you did not read my post very well it seems. I suggested it is not difficult to put a Dollar value on a gift voucher which means that it will only ever be worth the initial value. Increased costs will not be a problem for the issuer. The morality of selling Gift Certificates with expiry dates, especially in the expectation that many will not be redeemed, seems questionable to me. As for encouraging prospective pilot trainees I think most people would only buy such a T.I.F. Voucher for someone they thought would use it.