We got lunch vouchers, which were worthless to us. We booked our tour on the second day of our vacation in 9/03, and set it up for the very last day. So, we got the vouchers for lunch in the afternoon of our last day. They were only good until 5/04, so we couldn't use them. Ended up giving them to a friend who went in February. I wish they would have mentioned this up front, and we could have scheduled our tour before our final day.
But we bought anyway!