While I am selfishly sympathetic to the desire to see cheaper ticket prices, there is a kernel of truth in what JoeKV asserts and those who have argued with him thus far are, to me, making a slightly different argument.
I wholeheartedly agree that it's incumbent on today's producers to make it possible for the largest possible audience to see their shows. For example, "HAMLET" making so many $25 tickets available for its run at the Broadhurst last Fall was a wonderful gesture by the producers and definitely in the spirit of inclusivness. They certainly didn't NEED to sell those seats at only $25 and could have seen even more revenue from a higher ticket price.
But what so many seem to REALLY be arguing for is the right to get what they consider to be a GOOD seat at a cheaper price. And that, I'm afraid, is not nearly as strong an argument -- both because of the free markets/capitalism argument Winston makes above, but also on the "past generations" argument ABB2357 makes above.
My parents and teachers who took me to theatre as a youngster rarely, if ever, sat in the orchestra and even if we did, it was usually in a lesser seat location. The ticket prices then were definitely lower, but they weren't that drastically more affordable based on the economy of the times. Even then, it was still quite a luxury to spend $40 or $50 on a theatre ticket and more often than not, we sat in so-so seats and paid a lower price and hunted for discounts. Simply put, there is no God-given right to sit in a great seat and pay only a price you can reasonably afford.
Now if the producers of shows like "La Cage" were ONLY offering tickets at $132.50, I would join the picket line right now. But they're not. There are other options. And there will be discounts. If their pricing bothers you that much, then boycott the show. If enough people do it, it will send a message. But especially with the costs involved in mounting a show, and even more so with the risk involved, there's no moral imperative for the producers to charge less than the market will bear for the better seat locations just because it would be a nice thing to do for the audience.
"No matter how much you want the part, never let 'em see you sweat." -- Old Dry Idea commercial