And we will complete the circle for the second time. You are paying for one day of entertainment. Yes with 1972 technology the pandora ride would have to cost 200 dollars to ride, but I believe a top of the line entertainment day in 1972 is equivalent to a top of the line entertainment day today. If you want to insist that everything in the basket they use for inflation has to have been exactly the same in 1972 there is almost nothing there. We do measure inflation and a lot of things in our world use that number for very real decisions. I will use an example that does not fit your premise. Movies cost a lot more to make today than in the past. Movie tickets have risen much less than the cost to make these movies. In 2018 avengers cost 410 million to film. In 1972 the Godfather was the most expensive film costing 6 million. That is 68 fold. Ticket prices went from 1.76 to 8.97. Those are averages from a trade group and seem low on both years but are averages. Here we have costs to produce the entertainment going up 68 fold while the tickets for consumers went up only 5.
Movies fit the premise. A movie from 1972 is much more similar to a current movie than Disney now is to Disney 1972.
The relative deflation in ticket prices comes from a few sources. Distribution costs are way cheaper (they used to physically print movies on film and deliver them). The worldwide box office is more significant and doesn't add any costs. (Not many people in China bought tickets to the Godfather, but lots did for Avengers).
Also, the major things that are different/better (3d, for example) are often separate up charges. By splitting out the improvements you pay for them separately.
Disney does the opposite, providing a largely inclusive entertainment experience. One that is much better now than when they started, and is thus more valuable. This would be easier to see if they still used the A-E ticket system, as the original E ticket rides would have all been downgraded, offsetting some of the inflation in ticket prices.
As to whether Disney is a day of entertainment now and then, I think what you're missing is the quality is different.
I can buy seats for the orchestra at my local university for about $5-10. Our local downtown symphony is about $50-$100. By description, they are exactly the same thing (listen to one symphony) but the quality is different so the price for one is higher. The higher cost one sells more tickets (I go to both). Disney is the same comparison but at different times. Disney 1972 was a day at an amusement park. Disney 2019 is a day at a way better amusement park. For basically everything better=more expensive....