Interestingly, the forum/post is even older now, from you described it as such...
I am thinking about buying the Vacation Pass book for my stop in Key West in March. It's gone up in price, but even at the $49 price, it is a bit of an investment/risk if the businesses don't accept it that I am planning to use it at. Namely, the Old Town Trolley tour.
Have you heard of any recent information on these Vacation Pass Coupon books?