JSC was definitely packed when we got there early Friday afternoon.
But, we waited in line for the tram for only about 10 minutes to do the Mission Control Tour. They say the tour lasts about 1-1/2 hours, but, we were on it for about 1-3/4 hours, according to the time stamps on my iPhone pics. We went at a pretty leisurely pace, and were never rushed at all, especially in the Saturn V building. You took a tram there, and then got another tram for either the Mission Control Tour or the Space Training Tour. Then they take you back to the SV area and, if there is enough time before closing, you can take the other tour. All of this, plus all of the other exhibits, were included in the $29.95 (Emy was free ☺) admission price.
You can also have lunch with an astronaut for $69.95, and there is also the Level 9 VIP tour that lasts between 4 and 5 hours for $179.95. The price of admission is included in both.
I didn't see anything for $300 on their site, unless I missed it...?
I know their memberships can get pricey depending on what level you purchase...from $55 for an Individual Membership all the way up to $1,000 for a Patron Membership.
Also, they mention on there site that tours and such can change at any time, due to the fact that it is a working facility and the dynamic nature of such regarding ongoing operations.
Something like that may have affected your touring during your visit.
Hope you can return at some point and have a better experience....!!!
Anyway, our visit went really well, and we want to go back again in the not-to-distant future, due to the fact that we didn't have time to experience everything we wanted to. But, it was still a really amazing and awesome experience for us...!!!!!