Interesting claim, but there's basically no discussion of this that's ever taken place to my knowledge. Claim was put out there that early Disney guests felt "nickeled and dimed" back when rides ticketing existed, so Disney came up with the idea of ticket books purchased at central locations. It seems fairly clear that kiddie rides typically had this kind of arrangement. But individual ticket booths for rides at traditional parks and carnivals were definitely the norm for many years. When did ticket booths and tickets used across all rides become the standard?