This varies from passholder to passholder. There are some passholders that stop in do their 3 passholders and leave. There are others that visit quite regularly and in a rather full capacity. During limited capacity, when you compare a ticketed guest to a passholder, this (ticketed guests spending more) holds true. Under normal circumstances though, it's not an either or proposition. There are local passholders that dine at Disney on a regular basis. They don't buy as much merchandise on each visit, but they buy merchandise consistently. There are some passholders that are out of state that make additional trips since they have a pass, that they wouldn't otherwise make. These passholders typically spend more in-line with ticketed guests. APs also balance out some of the lower travel seasons. The only reason I see to reduce/remove AP is if they truly want less people in the park in order to improve the quality/experience of Disney. But that comes at the expense of profit, and I don't see that happening.