Well after having stayed at WDW several times over the years and especially several times in 1998 due to an AP, we were always asked to present a valid AP when checking in for the discount. Now having said all that, there may be people who have done this and have never been asked for a valid AP, but that has not been our experience. I'll put it this way the only way I would chance this is to book the room and then play it by ear. If asked I would then have to present a valid AP, not a voucher which isn't an actavatied AP, just a voucher! Hope this helps, Chip. BTW, if you do this and you are ask for an AP and either you don't have 1 or you don't end up getting 1 they will charge you their full rate per night depending on the season you will be staying!! Chip.