There are more than you would think, though. I've discovered that there are 6+ pipe organ companies in CT alone. For the most part I expect they are maintaining and rebuilding older organs, and in some cases augmenting them with digital ranks to expand their capabilities, but I was surprised at how many there still are. I may have to create a checklist and go on a New England listening tour. I remember going to a Messiah sing about 30 years ago in Boston in a big ole church in Copley Sq and the BIG pipes were teeth/filling and gut rattling. Nearly a subliminal effect, but what POWER.

In the '70's I shopped for speakers with a copy of Also Spracht Zarathustra. If the speakers couldn't do a decent job on the opening rumble, I wasn't interested.

Plus ca change, plus cest la meme chose!