O.K. This will be our first trip to universal....and it is a last minute decision...so far I have booked our hotel and purchased express tickets which I will pick up at will call. I want to purchase the flex tickets...I live in Canada...they have to fed ex those...won't get here on time. Now this may seem like a stupid question...but they are telling me to buy them at the gate...will they won't sell out of those will they? I would rather have the tickets in hand...any ideas???

