I'm sure that is true, but, you are not talking about direct link themes. (all part of Potterville) You're talking about two different parks with completely different setups. The same thing applies to taking a monorail from MK, transferring and going to Epcot. If you are going to enter the park you have to have park hoppers. But, you don't have to have one to ride the monorail, you have an escape route before the gate. I can see that it is a clever way to use space and profit from it at the same time. I just don't think it is anything other then a complete money grab on the part of Universal. Nothing unusual about theme park procedures, but, still. And in case people haven't really noticed, Uni's daily rate is quite close to Disney's daily rate with two less parks then WDW even if you add in park hoppers.