Hi All, I will be in Amsterdam 9/21-9/25 (arriving in the afternoon). I originally went on the site too early and could not buy tickets. Then I forgot about it and then was without a home computer for all of last week. Now the regular tickets are sold out (or only have 1 available) for the entire time we are there. However, I then looked at the tickets with the 30 minute intro and it seems that those are only sold 2 weeks ahead of time. As of today they appear to be available for purchase through 8/21 only. Is this correct? Are there any other options for buying tickets ahead or tour companies to go through. It is some place I would really like to visit, but know I won't if I have to stand in line for a couple of hours.