Now add in food.....

It's interesting the different ways this can be analyzed, and I'll admit a little too much fun.

Taking your $678 price from 1990 and applying it to 2019 dollars makes it $1311.29. Meaning that today's cost in your example of $1,768 means that it is priced 34.83% higher that it was in 1990. And you went from 5 days to 4 (on tickets), and Moderate to value (on hotel). On the flip side, you have 4 parks vs 3 now.

But 28,700 is worth $55,506 in today's dollars. Using this math:

1990 -- WDW trip as you list was 2.36 % of income

2019 -- WDW trip is 3.19% of same income.

That's a .83% increase of total income. Pretty substantial, IMO. This doesn't even take into consideration the massive increase in food since then.

Like DVC, you can run the numbers many ways. There's no denying that it is more expensive today than it was yesterday. Depending on how you want to feel about it, you can use different formulas to reach a conclusion on just how much it has actually jumped.