attractions (so the cost of attractions was baked into the admission price), the cost for a single day at Disneyland was $13. Adjusted for inflation, that would be equivalent to about a $35 ticket today.
Now, of course the parks are larger with more attractions, etc. nowadays compared to back then. But the point is that Disneyland is 10 times more expensive in inflation-adjusted dollars than it was back in the 1980s.