Oak2 said: "Your arguments make some sense, but I still feel there's a difference between raising the price due to actual scarcity, and withholding them and creating, as you outright admitted, is the "illusion" of scarcity. That's manipulation. That's lying to the customer to trick them into paying more."
But it only works if there is demand.
There are two other issues.
By not putting every ticket on sale, they also prevent scalpers from buying every good seat in the house before people have a chance to get them. We're a biased sample here. Many people don't know Bette is in Hello Dolly yet, and may not until there are more commercials, reviews, TV performances, etc. So, in that situation, paying more for not paying attention is fine. And it prevented the first 15 rows of every show already being owned by scalpers.
So, it gives people a better chance of getting a ticket, and from scalpers owning all the tickets. But they also don't want to sell the house out at $180/ticket if they are all going for 4-5x as much on StubHub later. If someone is going to have a financial windfall from Bette in Hello Dolly, it should be Bette and the people who produced Hello Dolly, not scalpers.