Except I remember as a kid those little ticket books only had a limited number of the really "good" rides - the E ticket rides - so if you wanted to ride on the Matterhorn or Space Mountain again, you had to buy another book.
Then, I seem to remember when I got a little older, they started doing a la carte tickets next to each ride, that were each a little more expensive than if you bought a whole book of tickets.
Then finally they went to the all-you-can-eat method and we thought, "what a deal!"

When I was in college, a Southern California one-day ticket was $20. Those were the days!