By the way 75 bus loads sounds like a lot, but it isn't really for this sort of event. I run a lot smaller events where we fill up 10 - 15 buses. You line up 75 buses all around the ACC (which has a ton of exits and sides, etc) and everyone could probably fill up the 75 buses in under 15 mintues and you head out. Similarly, the Honda Center has plenty of parking lots so sliding 75 buses up outside the building isn't that rough.
Heck, even if the only way to get there is the buses (which might be smart because it's actually easier to just let buses in rather than have the streets and parking fill up with single-passenger cars), then it's 150 buses by your math. Again, not an issue. For any of you that have been on cruises, it's like pulling up to a port and there are 50 different buses there having different tour groups headed out. And this is even easier cause everyone is going to the same place.
If they're really smart, they'll get police assistance and do a selective road closure on Katella Ave for a 30 minute block so the buses can just fly through direct. This is Disney, so if anyone can pull off the logistics...
