It is good at science centers all over the country. You can go to <a href="http://www.astc.org/sciencecenters/participating.htm" target="_blank">http://www.astc.org/sciencecenters/participating.htm</a><br>
and check out different states. The problem is that Science centers and museums located within 90 miles of each other are excluded from the program unless that exclusion is lifted by mutual agreement. Now I know that A C gilbert lets in Omsi members, so I would think the other would be true, but I am not sure. I also noticed that Evergreen Aviation Museum is on the list at the web site, but Omsi members do not get in to that one free, I do not know about A C gilbert members. Sorry this is so long and really doesn't tell you much.<br>
The short answer is I would ask when you go to get the membership and see if it is worth it to you.