It’s not fair to blame Hamilton for greedy prices.
They were too high before Hamilton. For example, Mormon raised all their prices to one price when they got big. This issue goes back to The Producers.
Springsteen is a concert using a Broadway theater, there’s nothing about that show that applies to anything Broadway.
Frozen and Harry Potter are going on sale with high prices and hoops to jump through in hopes they will be huge. They could both bomb for all we know.
Yes prices are too high but as long as people pay them, they’re not going to get any cheaper.