Most of the cost is likely to do with the security, tour staff, and buses that transport you to and around the giant facility. $25 is on par or less than many other Seattle-area attractions such as the Space Needle and the Chihuly Glass Garden. Your $25 would buy you a couple of rivets on a 737...
$25 is worth one nut bolt of the thousands of nut bolt used in the boeing.
For good measure, seniors are given $2 discount
Thanks! Your answer is awaiting moderation.